5
It should be mentioned that you would need a database that is compatible with PHP. MOST common databases are compatible but if your applications are using a specific not common database it may not be possible if there is not a PHP connector for it. Regardless this would require an application written from scratch and depending on what you want it to do could become complex and expensive if someone does this for you.
I just did a quick search and did not see much mention. Can you provide a link to the system you are using so we can better point you in the right direction?
My initial suggestion is that it will require a programmer to write from scratch but not knowing what your programs have as components makes it very difficult to make a call here.
I did see a mention of something about lutece being XML based but it really is a shot in the dark without knowing more information.
Rodney