don't hesitate to upload them. i uploaded even modules that require VSTs. i know that many ppl won't like it, but i don't care. firstly, i gave a hint to my VST tutorial on my artist page, then included the link in the brand-new song comment function and last but not least, there's a hint in the module file itself. and btw, the only players that you should support are IMHO modplug and xmplay only. who cares about Impulse Tracker, OmniPlayer, the PB routines and so on today? people mostly still have them but only beacuse of nostalgia. and as far as i know, xmplay supports IT macros.
but this is only my opinion.