I have just installed MediaPortal RC1 (server/client).  In the previous build I had customised logos for each TV channel that were placed in the ..../thumbs/tv/logos file and they appeared against the same named channel in mediaportal.  But when I went to do the same thing in RC1 there is no thumbs directory.  So where do the logos go?

I rely on the DVB-S downlinked EPG.
I have consulted mcraenz's guide but note that, tantalisingly, the customisation of MP is part 6 of his guide, and is still a work in progress.

Any bright ideas?   Have done a search cant find a solution.