B4U Travels.com CMS

I want a CMS for the site gao.b4utravels.com. You can see there i want category management there can be more than 1 main category so the category title and the sub categories are there. The sub categories are the pages itself. The main thing is this that i want this cms capable of level 3 sub category. I want this site CMS ready in PHP with .htaccess and the thing should be clear that this project should have links like [login to view URL] mean to say i want all the hyper links in folder like nevigation system. And note if i enters "calongute beach" then the hyperlink should be like calongute-beach. The main thing is to take the .shtml pages in CMS. More things will be clear via PM. My budget is not higher... Happy Bidding !