I need to append another query string to the end of the gallery links...is there a way to do this?

Example:
Current Gallery Link:
/index.php?album=direct-mail

What I want to do:
/index.php?album=direct-mail&active=portfolio

Thanks,
Mike

You would have to custom code the link. $album->name will give you the album part. so presumably you would use

echo 'index.php?album='.pathurlencode($album->name).'&active=portfolio';

For more details see the themeing turorial and the object model docs.

BTW, we call albums albums. Gallery refers to your whole installation.