Madden NFL 08

The way i got this (after much trouble) was set a game playing as steelers vs texans, rookie difficulty, 5mins qtrs, offisides off. Once you have the ball (try and start from behind your own 10yrd line (this gives you enough room to go 20 plays before scoring). Use the play 'short slants' and always pass to 'RB' (not sure of the players name). Before you pass the ball to him make sure your QB is behind the player you pass to, this makes sure you make a forward pass. He will easily make the 1st down so always make use of the 4 plays you have to reach the 10 yrds, making 2/3 yrds on each play.
If you follow this method you will also unlock the '10 cathes in a row' achievement as well as you pass to the same player for the full 20 plays. Always make sure you catch the ball and not miss/fumble the ball. Once you are sure you have complete 20+ consecutive plays you can supersim the rest of the game and it should unlock when the game finishes.

Any questions id be happy to help

Hope it helps.

To get this acheivement go into a game on rookie difficulty with you being the Patriots and face the Texans. When you are in the game pick a screen pass play and throw the ball to the runningback twenty times in a row. You can run out of bounds to save time but make sure that you get a first down along the way. You dont get the acheivement until the game is over.

Patriots vs. Texans, Rookie difficulty. Play with offsides, fatigue and injuries off. Pick Dual TE Flat under quick passes and pass to either tight end. Pass to the same TE every time. You can change the Game AI, too. Set all of your sliders way up, and the CPU's way down. Also, create a new quarterback and tight end, just make sure you set their sliders all the way up and move them to first string using your Depth Chart. Good luck.

The achievement is simple and clearly explained, but some players may experience some problems caused by the last patch.
The technique to complete the achievement is as follows:
- start a new Play Now match, User vs Cpu, and select Colts for you and Texans for Cpu. Set 5 min. for time (this is not required but in this way you can also unlock the achievement "10 Catches in a Row") e Rookie for difficulty level.
- Pause the game and take to the max the % all of user option under the AI configuration. At the same time, set to 0 all the options of CPU and disable fatigue and injuries.
- when you are in offense, select the first play under the tab TE of the "by player" set. In this play you can see the the player marked with the A button that moving perpendicular to the field from right to left.
- hike the ball, wait a moment for the movement of the player A, and make the passage.
- when you catch tha ball, go offside and repeat at least 20 times (remember to make a 1st down before every 4th attempt) and supersim to the end of match.
The achievement will unlock after the end.

Some times, the method just described might not work, especially if you downloaded the patch. In this case, remove the game if installed, and start the maintenance of the HD by deleting the disk cache (it's on option of the memory section of the dashboard). Obviously, once you start again the game, refuse to download the patch and play it disconnected from Xbox LIVE. After that, repeat all the operation listed above.

Easiest way is to play as the San Diego Chargers and when it's your play chose to play by player and choose Gates your TE, then choose the first play, pressing A passes to him.The AI never seems to be round by him within the first 5 seconds of play, an achievement that was really bugging me made easy. Repeat 20 times and sim until the end.

I used two controllers for this achievement. I took control of the Patriots while the other controller had the Browns. With the Patriots on offense, I had the Browns set for a field goal block play under the Special Teams formation. Make sure you are not having them run a field goal 'safe man', as this will cause some cornerbacks to stay back and defend your wide receivers.
With the Patriots, I ran the first play available under the Shotgun formation. Really you could use any pass play from the Shotgun position, as you will be given plenty of time to quickly toss the ball to a wide receiver. With my chosen play, I would simply hike the ball and lob it over the Randy Moss (I believe he was the B button for that particular play). Once Moss had the ball, I would run back past the first down marker and out of bounds so that the clock would stop and I would have more field to work with.
Using this method (starting at the 2 yard line), I was able to make 21 consecutive throws (for safety) before hitting the endzone. I got it well before half-time, supersimmed the rest of the game and BOO-DOOP! Got the achievement!

Play patriots vs browns, with 2 controllers. Keep using Dual TE Flat with the account you want this achievement for and use FG block on every game for your second controller. Now be sure to pass right after hike to B because a second late and you`re sacked. I was able to do 10, when i accidentally picked dual TE flat for the field goal and missed the pass.

This was my last achievement for 08'.
Was pretty annoying after several tries.
I found that after running the same play,
(Short pass to TE and running out of bounds.)
Eventually he would drop the ball between 7-14 consecutive completions.
So every 5 or so completions I would runs HB dive play to throw the game off.
This worked my first try attempting this.
I used the NE Patriots. (Brady to Watson).
I heard there was an update that would cause a receiver to drop the ball if the same play being ran consecutively and successfully to prevent cheap wins.
Try this method, worked for me!

Like The Machine MRG said, this is easiest if you use the Steelers playbook, but keep in mind you can choose any team you want (such as an All Madden created team) and then select Steelers when it asks for coaching. Also, like others said, start at around the 10 yard line to give yourself enough room. Use the play TE Option and always throw to your halfback with the RB button. The way I finally got it was to FLIP the play every other play. That way, the AI doesn't catch on and you reduce the risk of your receiver running out of bounds before he catches the ball.