F1 on Internet/network access

[destiny020386]

Configuration:

1. Server machine
-Win Ser 2003 R2
-3 Net adapters (named internal, external1, external2)
-ISA 2006 is installed

2. USR Router connected to external1 (192.168.2._)

3. Switch1 connected to internal (10.0.0._)

4. Switch2 connected to external2 (169.254.208._)

Problems:

1. Computers connected to switch1 have internet access while computers connected to switch2 doesn't. I configured ISA to allow all outbound traffic from Internal IP range and External1 IP range to External2.

2. What should I do so that I can access computers connected to Switch1 from using computers connected to Switch2 and vise versa.

Your recomms are appreciated.