I’ve renamed ‘jq-mplayer’ folder to ‘jq-mplayer-mod’. Also in the Module’s list it will be named “Music Player (.htaccess mod)”.
To change module for already existed (created) galleries -> go to edit gallery -> click on module image in left top corner -> in popup choose new player “Music Player (.htaccess mod)” -> save with new module.
If you need this module for others blogs, then you should copy ‘/wp-content/blogs.dir/4/grand-media/module/jq-mplayer-mod/’ folder to others ‘blogs.dir/#’ folders.