Iphone 3GS stuck in recovery loo, please help!!!!

Ok so il give you all the details, here we go.
First i got my Iphone 3GS on FW 4.3.3, i decided yay lets jailbreak. So i downloded Redsnow and done the jail break selecting i had the new bootrom (which is correct) and selected intall cydia and install baseband (which would let me use my O2 sim in an AT&T phone). The process complete without any problems but when i turned my phone on i was stuck on emergency calls screen (i tried using old sim still didnt work), so because the tutorial i had didnt explain this could happen an not to panic, what did i do? I panic and went into itune and pressed restore and update, everything was going smooth until Itunes got to the last little bit and just stopped (my Iphone also got to the last little bit and had to wait for it to time out). I got error code 1013 and ever since i have been stuck in recover loop. Umbrella wont recognise my iphone, half the programs im told to use wont run on my computer (windows xp) so i have ran outta ideas and im sure there is someone out there that has the answer, Please please help me and i will love you forever.    

Did u ever fix this? U would have to manually put your phone into dfu mode manually and connect to itunes to do a full restore, and my 3gs is newer, but i have the old bootrom...r u sure urs is new?