Lazyest Gallery and Sitemap Generator Conflict

I installed lazyest gallery plugin and it works perfectly but I also have the DGen sitemap generator plugin installed.Now whenever I click on the sitemap link I dont goto the sitemap page anymore. I see the gallery page (but under the /sitemap URL). I didnt even touch the sitemap page. I deactivate the plugin and everything is back to normal.

Damn. I would like to use the gallery but if its like this it doesnt work. Any suggestions what is wrong here?