3.1.3 with modem firmware 5.13.03? is this right because i got hold of 4.0 beta tried to update it and was told i had to be a developer to activate it. so then it was a big mission to get back to 3.1.3 and now my modem firmware is 5.13.03 and befor i did all this is it was 5.12.01? is this right and is there anything i can do to jail break it now?