Installed Asterisk Now 1.5.0 and need help with Dahdi

Hi, I have searched for my answer but perhaps I am not using the right terminology. I have the system up and running with sip phones registered. However my digium card is not active so I pulled a stable copy of libpri and dahdi

I was able to make libpri with no problem

But when i went to make dahdi it told me that I needed the kernel source files installed and so far I have not found out what rpm is needed for the 1.50 version.

Suggestions?

Thanks

AsteriskNow 1.50 Beta2 should already have the DADHI files compiled and ready for you.