I have permission to make this mod.

I threw this together after finding this game. I believe it will work with any version of vbulletin 3. This game was made by RocketXL.

If for some reason someone wants to add permissions and such to this, just ask.

Installation:
Upload the guitarhero.php, and the gh3widget.swf files to your forums root directory.
Then upload the product.

To add a link to the navbar:
Find:

Add Above:
Next, go into your AdminCP and under your vBulletin Options, Find the Guitar Hero settings and edit them to your liking.

To Upgrade, reupload the files and override the product.