WP & Gallery USER INTEGRATION

My question is… I have installed WP 2.3 totally separate from Gallery, but I want the users who register with WP to automatically be registered as a Gallery user so they don’t have to register twice, once with WP and again when they visit the GALLERY.

I installed WPG2 and that works fine for adding thumbnails to the sidebar and maybe incorporating pics in the posts, pages etc, but I like having the Gallery application separate, not inserted in the pages of WP.

IS there a way to do this and combine user databases etc like I described above. You register to use WP and automatically are registered to use Gallery AND EVEN BETTER, WHEN YOU LOG INTO WP YOU ARE ALREADY SIMULTANIOUSLY LOGGED INTO GALLER???? That would be the ideal outcome.

Thanks!