I got the Ipod 3.0 update den jail broke my ipod touch but i lost da 3.0, i...

[Wesley M]

...put it back on n lost jail broke? i bought the ipod touch software update and then jail broke my ipod touch but then the 3.0 update was lost, so i put it on again and and the things i got from jail breaking were gone so how do i keep the 3.0 software update and keep (cydia and installer) the things i got from jail breaking my ipod