need to re root..

[techker]

Hey guys i updated and now noticed that in not rooted anymore..i was sure it was ok..lol

so is there a file that i can apply from cwm recovery ?apply update from sd card?

or do i need to go tru all the odin process..

will i loose all my data?like factory reset?..

i got this a root.zip file from a thread in here but it says signature verification failed..