ISP uses NAT for WAN connection.?

My ISP (Bell Sympatico) uses NAT on the WAN connection that connects me to the Internet. ( I assume to share public IP addresses between multiple subscribers) My Internal LAN uses the 192.168.0.0/24 subnet, and my router uses the 192.168.2.0/24 subnet as its WAN connection. My external IP address reads as a public IP address from websites.

This has never been an issue as it connects to the Internet just fine, however, I am trying to set up a connection to my home PC through Remote Desktop. My home router is configured properly to provide port fowarding to the PC (I can connect to it using the 192.168.2.10 address that my router has associated with it on the WAN side) along with connecting within the LAN itself, my problem lies somewhere on the ISP side of things, as connecting through the Public IP address is proving to be impossible. it seems I would need to have access to their router in order to forward the port to my router and so forth.

Anyone ever heard of this before? The guys at Bell aren't very knowledgeable, though I haven't had a chance to escalate beyond the 1st tier support. Anyone have any suggestions?

(I am well versed in LAN/WAN technologies, CCNA in progress, but I don't see a way of doing this from my end)