Multi-lingual personlization

I started working on a small PHP system to handle personalized pages in a website. On a particular page the navagation and page content are dictated by the user's account and/or security level. For example, the third paragraph can be seen by all level 2 user, but not level three users. Some level three users have pages that are user-specific and the links to these pages should only be found in their navigation banner. Much of the information is redundant.

Last week they told me that I should make it multi-lingual, doubling the page numbers and want the move the delivery date forward. Less time, more work. Now I am under time pressure and cannot take my time.

I am probably trying to reinvent the wheel although many solutions I have seen are more overkill than solution. I need to go on line and now I'm up to 500 pages with 100 docments.

I need a system (CMS? Web Mgmt?) that is fairly easy to install and offers good personalization features. I would also prefer PHP based unless there is something that I can adapt without learning Java again.

Who out there understands my question and has a great answer?