Thanks for the quick support , yes you are correct. I also followed similar post on forums.asp.net website . Followed Amit's instructions :
Go to module settings, the default module settings.
Under the collapsed group named ALTBGallery Settings you need to write as follows:
Let's assume your portal directory tree looks like this:
portals/0/galleries -> folder with subfolders only
portals/0/galleries/my pics -> folder with subfolders only
portals/0/galleries/my pics/my pet -> folder with JPEGS and no subfolders
portals/0/galleries/my/pics/my house -> folder with JPEGS and no subfolders
So, in order to show "my pics" as a gallery with 2 albums (my pet, my house) you need to enter at ALTBGallery settings:
galleries/my pics
The module will use your true portal id, if you are in a multi portal env.
That's it. Try this.
Again, make sure your portal root is syncronized in DB (use admin file manager, and NOT host file manager)
Also this post is very useful for many concerns on this gallery you can check complete post here : http://forums.asp.net/t/998334.aspx
Thanks ,
Regards,
-Sunny.