If the imported member's userID did not change on import your images will all be fine.
NEW DB:
I would install the new vBgallery 1.0.2 to the new install of vBulletin.
ALL DB / FILES:
Do backups of all database and files.
- new and old
OLD DB:
I would use phpmyadmin and export
DATA only from vBGallery 1.0.RC3 in tables:
- adv_gallery_categories
- adv_gallery_customfields
- adv_gallery_customfields_entries
- adv_gallery_ecards
- adv_gallery_exif
- adv_gallery_favorites
- adv_gallery_filetypes
- adv_gallery_images
- adv_gallery_moderator
- adv_gallery_permissions
- adv_gallery_posts
- adv_gallery_rate
- adv_gallery_search
- adv_gallery_subscribecat
- adv_gallery_subscribeimage
NEW DB:
- I would then
EMPTY w/ phpmyadmin the same tables listed above in your New forums/gallery database.
- Import your old gallery data to the new database.
- Make sure images paths on the webserver via FTP are the same.
Should not be a big problem.