Hi,
Thanks for all the suggestions, however we have an update...
I had debugged the SCMS_URL_GENERATE FM and it was retrieving the correct URL's for these icons, seems to match what is in table T77TMCPIC_URLS
When I tried looking at the jpg by pasting the url in my browser it failed.
SAP have signed in to the system and they could see the correct icons in the MSS application and could also view the jpg by viewing the url in a browser so this is not related to SAP config or bugs. It now appears that it is a domain issue, to prove this I have tried a slightly different url address for our system and that worked ok.
Have now gone back to the basis guys to again check the domain routing to the content server.
Will update again once they have responded...
Thanks again for the input