i am familiar with this receiver, and i hope i can help u!
yes, there is an EMU software for dbs2500 that can deal with polsat and multivison. but
u must make sure ur receiver with sharp0184 tuner inside.
so u need to open ur reciever and check the tuner.
if the tuner is right, follow my topic,and i will tell u what to do the next.
good luck!