The long and short of it is; I put my ps3 back to factory settings (long story) and lost my online profile information (levels, guns etc.). I thought all the information would be stored on a server (rockstar perhaps) and It would go back onto my profile when I signed into my psn account but it didn't. I am back to a level 1 Greenhorn who has accomplished nothing. How do I get my info back? Is it stored on Rockstars server? 

as far as i know it's not. it's stored locally on your console. if you don't have a back-up i guess you're screwed :x