If your neighbors use filter lists for what they will accept from you, you can try and ask AS 2222 to ignore more specific and ask AS 1111 to accept more specific on the network you want to force on to AS 1111. I had a similar need and had no problem...

the 2610 does support IMA cards; just took one out of service.

pins 1&2 to pins 4&5 and vice versa

your example is pvc number 171 with a vpi/vci of 1/171. Are you wanting to assign multiple pvcs to the same subinterface?

Are you trying to aggregate bandwidth or are you trying to use it as a concentrator to terminate connections like you would use a 6000?