So I'll keep this as short as possible. I upgraded my MB to Lion and hated it - lockups, sluggishness, computer going to sleep even though it's set to never go to sleep, etc. Contacted Apple and was walked through rolling back to Snow Leopard. Restored from a Time Machine backup but the only backup that was available to me was one that was from after I upgraded to Lion (not sure why since I have a Time Capsule and I have multiple backups but it is what it is). Anyway, once I restored from Time Machine, a bunch of "Lion" apps were installed back to my computer (Mission Control, Facetime that only works on Lion, etc. and, most importantly, a version of the App Store that will only work with Lion). Because of this and other issues, I need to go back to Lion but I can't because I can't open the App Store (when I do it tells me that the version I have will only work with 10.7 and later and I'm only on 10.6.8). I tried running the 10.6.8 combo fix from Apple's website which is supposed to contain the App Store as well but that didn't help. How can I get back to Lion at this point? I tried to roll back to an older version of the App Store via Time Machine but that didn't work either. It's like whatever Lion files are left are wreaking havoc on my SL install and I can't even get back to Lion to fix these problems. Staying at SL isn't an option either. Please help!!!