Root access lost? topic

I flashed Omni rom after flashing stock gingerbread rom (soft brick). I rooted with gingerbread with speedmod kernel. Everything went fine i goed to advanced speedmod features on recovery and pressd there root and there pressd simple. I had root on gingerbread but when i flashed omni the root access lost. Is there anything that i could root it.

Here is the guide that i followed: http://forum.xda-developers.com/show....php?t=2444308