Help with Crib..?

The bumper i bought didnt fit well in my crib either because my crib was made for me by my brother. I did manage to MAKE it fit though, even though i had heard it could be a SIDS risk. I thought it might be worse without the bumper, as there were somewhat big gaps between the mattress and the crib. So what I did was kind of tuck the bottoms of the bumper in between the mattress and crib (tied it also with the ties on the bumper), which helped to keep it in place also. It worked out just fine, never came out of place - and had it in there until my daughter was about a year old, then removed it and just tucked rolled up blankets or towels around the edge of the crib. As far as your son getting used to the crib - that just takes time. i know how you feel - my daughter spent her first 3 months sleeping in this little bouncer-hammock thing right beside my bed so i could see her at all times. When she started becoming mobile, i started putting her to sleep in her crib and she did fine. We always swaddled her though, so i think even in her crib she felt nice and secure. I dont know if this answers your questions, but i hope it helps.