Thanks for your replies,
I just installed Fiddler on my server and tried to connect to the service in ArcCatalog, when I look back at Fiddler I don't see any error messages in stats.
The token is set for a years use. I wonder before I connect to the web service in ArcCatalog should I do something with the token first?
In Flex Builder I added it to my config xml along with the token path and when I open the viewer it brings up the Sign In window but when I add credentials it gives error 2032 which Adobe says it occurs when the url or file is blocked or not found by HTTPService call and to check it in an url. I have done this and it works fine.
I see other agencies are using the same service on public viewers that I'm trying to access so there must be some way around it.
I Use the Services on another non secure external server and I have no problem connecting to it and using it in Flex, I then use WMS from the same agency I'm trying to connect to the secure services, the WMS connected fine, it must have something to do with the fact that it's a secure service.
Oth how do I reconfigured the web adaptator using a shared key?
Rachel