Unhappy [Q] Help problem in Xperia Tipo(Single Sim)

I have a sony Xperia Tipo. I just installed a recently launched ROM called Paradox. I installed Rom in CWM Recovery. As soon as I installed Rom and rebooted system It showed Sony logo and It stopped right there. I waited for 20 minutes but system wouldn't move forward. So I had to switch off the phone as it would remain just like that until the battery totally discharged. I rebooted it many times. But still phone wouldnt start. The phone doesnt even enter CWM Recovery. What should I do???