can't find any menu/way to add pics/administer from within drupal

I have a D6.8 and G2.3. installation. Was able to integrate Gallery with Drupal and I was able to use the block feature to display some random pics on my frontpage in a designated block.

But my problem is that the only way I can add pictures/albums or administrate it for that manner, is through going to the actual independent entry page of Gallery on my site (which is mysite.com/gallery2/main.php)

How do I embed the entire Gallery into Drupal so I can administer it from there ?

Any help would be greatly appreciated.
Thanks!