I think illegal motion in college is when a WR is moving forward towards the line before the snap. I don't think they are the same. I once downloaded the college football rulebook online. I was able to print the whole thing out.
Interesting rule that i was researching at the time was whether a FG attempt was considered good if it went through the uprights but due to heavy wind, blew back out. I believe the rulebook said that the kick is good as soon as it clears the posts, but i could be wrong.