Ahh you must mean this thread:
http://forum.ppcgeeks.com/showthread...ight=radio+rom
I see these two:
Sprint Raphael Radio V1.03.15F Shipped
Sprint Leaked Touch Pro Radio v1.00.04F R
Interestingly - I put the 2nd on my phone and apparently sprint tech can't even see the device on their network with that radio rom - so I guess I will try the first one.
Thanks!