Unhappy [Q] Big problem...plz help!

Hello my friends...i have samsung galaxy core GT-I8260...my phone has rooted and i had install the CWM...Now i format everything in my sdcard...i try to install with cwm unoficcial roms, but when the installation finish and i press reboot my phone goes to cwm...
Plz help me...

P.S : i connect the phone with my pc but can't synchronized.
Thx and sorry for my english!