Alright, so after about 6 tries, I finally got My3G & RockApp to download. I've run into another problem though. When I open My3G it's stuck on the "No License Found" "Checking for License Updates..." ):
because literally thousands of other people are trying to download anything and everything from their freshly jailbroken iphones at the exact same time.... the best thing to do at the moment is just wait.
I, personally, wont even try to open cydia again until tomorrow afternoon... trying to download anything today is just going to take forever and make me mad... so i'll wait.