I haven't messed with cisco scripts in a few years, so take all of this with a grain of salt. Shouldn't the ethernet interface have a 192. 168. xxx. xxx address?
Currently it's 188.8.131.52. I would think that interface needs one unregistered IP, give the firewall another unregistered IP and tell it to look for the router address. Have you worked out your subnets correctly?
Are these IP's you currently have configured real? Well, to answer my own question, I guess they are, since I could telnet to one of them.
That was my first thought too - as it also allows for a dmz, but it depends on the the firewall...