Definitely don't omit your transcripts! I was in the same boat as you--earned very low grades my first time through college--but I was able to get into a BSN program with no problem. I don't know about where you're applying, but the programs I applied to were only interested in your last 30 units as far as GPA is concerned. It most likely won't hurt you to submit them, but if you don't, it could definitely hurt you. I know of two people who were dismissed from a local university this past year for "hiding" past transcripts like this. Just submit ALL your transcripts, and good luck!