@ albaranov
Check the first post in this thread for instructions on how to use XWMM.
XWMM is basically used to efficiently directly edit your XBMC database. XBMC does a great job of auto scraping info /images for media, but customising these info/ images from within XBMC can be a pain or even impossible.
XWMM makes this easy, and is very lightweight (no software to install - just use your browser). Different people will have different uses for it but for me I use it to tidy up my XBMC library - to change the auto scraped genres of newly added movies for example.
However be aware that music support in XWMM is still in its infancy - Slash is working on it and I'm sure it will be awesome once complete!
(Incidentally - I don't really agree that XBMC is limited in terms of your music library. It just requires that all your music be well tagged - use a tool like mp3tag to organize your music files and add cover art directly to your mp3s if you haven't already. XBMC will then grab artist and album almost always. If it doesn't it is currently very laborious to add custom reviews / info...but it won't be once XWMM music support is complete!)
@
slash
Thanks so much for the update. Just wanted to report a couple of things. On my Win 7 X64 machine clicking on the music tab crashes firefox.
Also when i double click a movie poster to change it most alternative thumbs don't show up - instead of a poster there is the text "movieposterdb.com no hotlinking allowed".
Finally, is it not yet possible to manually add thumbs / fanart from URL or local file?
Thanks for all the great work