changes to PHP script

Hi, I need some changes making to my php script: 1) My php script wont save any value higher than 2,147,483,647. If I manually edit a cell in the mysql database it will but when using the php script I can enter a value higher but it never saves it. 2) my php script website has a forum in the admin panel I want to be able to set word censors so if a word is added to this list it is blocked with *** or something. 3) on the search feature on the site, the results sometimes can be hundreds it wants to split these into pages per 50 or something 4) item market on the site list is huge wants to split this up into categories it is already organised in categories just maybe make categories clickable? 5) user list, on this page there are hundreds of page numbers going accross the page causing the page to be really wide it wants to have about 5 page numbers then some on the next line etc. This all needs fixing as soon as possible. Thanks a lot.