Dont sweat it, mine just did it too.
http://www.contour.org/ubbthreads/showflat.php?Cat=&Board=tranny&Number=1271489&page=1&view=collapsed&sb=5&o=7&fpart=1
Order the bolt (bolt p/n W702421-S309M)
Jack up car and remove wheel so you can get to the shift cable ends and pop them off while you're down there
Support engine and transmission
Remove Transmission mount (3 bolts on tranny +3 on car)
Remove shift tower bolts
Pull shift tower out (unless your car is stuck in gear instead of neutral, in that case add 2 or so hours of cursing, pulling, and violent shaking of the shift tower to the end of this list)
Drill or use screw extractor to remove the part of bolt still in the tower (it's very soft 
)
use threadlock and replace bolt
Fish out bolt head (magnet on a string or a Bend-It Magnet ACE harware has them other places prob do to)
Installation is reverse (use gasketmaker!)
Easy fix hour/ couple hours fix 
