OK so its already there as a link, if you look at someones photo album there is a link that says "View all user albums"  and it will show you there albums.

Now if you wanted to create that link somewhere else you would just do this.. either in custom html or a new page or just edit the html output page..   Im now sure what you wanting since its already there, 

Untested but you can try this as a link

<a href="http://www.mysite.com/photo/useralbums/{$username}">user albums</a>

also have a look at ow_plugins/photo/views/controllers/

photo_user_album.html   and photo_user_albums.html

in the album.html  i found this on line 4 

<a href="{url_for_route for="photo_user_albums:[user=>$userName]"}">{text key='photo+view_user_albums'}</a>

that should at least get you pointed in the right direction.

yeah probably because the username var is not set as you are not loading the users array before your link...

its gonna take a pretty good mod to do that,  there is nothing in plugins for this ?