java with uClinux and Cyclone (Nios2)

Thanks a lot Martin! the jop ,i think, is the most performable jvm for embedded machines. But i've one question to answer: I use a quartus II 4.0 and my hardware board is a altera Cyclone EP1C20 with a NIOS 2 processor. when i try to compile a cyclone32 project included in your nios.zip package, quartus give me a list of error, as:

Error: Can't place node ser_rxd -- illegal location assignment PIN_153

and

Error: Can't fit design in device

What can i do?

Tnx, Andrea

PS: Can you tell me anything about a future altera's board cyclone 2 + jop?