The OP stated the windows steamed up.... i would say steamed up is very different to condensation.... no ?
Just an update, got a new seal for the aerial and now the inside no longer steams up, so looking like that was the culprit for anyone else needing one this is the one I used, quick 5 minuite job just 1 bolt under the lining accessable from the boothttp://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=360264497516&ssPageName=STRK:MEWNX:IT
christ I'm tight!