I'd recommend posting in the trillian.cc skin forum.. Might find someone who will do it there, as it does take a fair amount of work to convert it over.. If you're willing to learn yourself, it's just a matter of adding the metacontact icon/images and associated code to go with it.
I've been skinning Trillian for a few years now, with my most popular skin being Aikon.. Aikon started life as a pretty basic skin for Trillian 0.635 ( See it here ). Back then skinning Trillian was a lot more restrictive and the limitations led to a skin that looked "ok" for the time it was made.. When Trillian hit 0.7x, things got a lot more interesting, full on free-form skinning came in, and the skinning language was expanded upon by
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