Well I succeeded to get ir to work, How I did it though is another thing. I removed all files from the Module manager module but had to re-install because there was one of the files, which one I don't know, which was causing my admin login box to dissappear. Anyways I then re-installed the advanced Cross sell and ran the ).sql and the 1.sql commands found in the admin/includes/module_installation/ji_jaxs/db. and then Voila all showed up in the admin/configuration and the admin/catalog.

THE ONLY PROBLEM NOW is; That whenever I insert a cross sell item with my main item, I get 2 identical
May We Also Recommend The Following Item: as well as 2 cross sell items. When I do an edit in the admin/catalog/advanced cross sell box it shows duplicate entries of the same cross sell item. If I click the delete button on only one item it deletes both.
You can see the situation here:
http://www2.thetrailingedge.com/tte/...products_id=14
Can anybody help with this Problem.
Many Thanks,