bro...download the latest redsnow...n download the ipad baseband...it seems like u didn't upgrade your baseband....and jailbreakme was patched long time ago....when u do the jailbreak select install the cydia and install the ipad baseband ...it will show u a dialog box saying u will not be able to downgrade frm the current firmware..selecet yes... and proceed with the jaibreak...then download the ultrasnoww....frm cydia....then that should work....i did it same way....
let me know if u need some help...