I will share a new hack which I use to do that. Its very simple.
For adding or modifying anything in albums, we need to go to
http://www.domain.com/useralbums.php...id=521&admin=0
similarly for adding or modifying anything in categories, we need to go to
http://www.domain.com/adm-cats.php?p...tcat&catid=516
The simple trick is to find out the id of the album and replace that with the catid in the above url.
For eg: if the album "landscape" has id "516", then I would use the following url
http://www.domain.com/adm-cats.php?p...tcat&catid=516
i.e. Use the edit category url, but with album id.
This would give the same edit album options like available for categories. Here you can add those 6 or more extra field and any other changes. But don't make any modification the the dropdown for "parent in 2nd row from top.
So basically, photopost could have given a simple way to do this from the admin section, but I guess it skipped out of mind and I hope they will consider this for the not so techy guys around.
Hope that helps.