This is my set-up:

PC (192.168.1.101) (wireless connection to)>
Router 1 (192.168.1.1) (wireless connection to)>
Wireless Bridge (Router 2) 192.168.1.110 (internal LAN 192.168.10.1) (wired connections to)>>
Receiver 1 (192.168.10.107)
Receiver 2 (192.168.10.108)

My question is, how do I connect from my PC using FTP to boxes 1 and 2 via Router 1? I know it's something to do with port-forwarding on port 21 but all my attempts so far have been fruitless.

TIA,
Spoooooooo