Fedora6 Server Runs Slow need expert to Diagnose and Fix

I have a Fedora6 box running Mysql5.0 and Php4.0. It is a webserver hosting many simple phpscripts. It is slower than Christmas. I have plenty of band width,memory,storage etc. I pretty sure that the issue is that I have been hacked. Complaints of spam being being sent from this server. There should be almost no mail being sent. System log shows mail trying to be sent every 5 min. I do not have cpanel acccess but ssh is available. I need you to Figure out the issue. Fix the issue Tell me what happened so I can avoid it in the future. I would like the coder to being soon after bid acceptance. ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Deliverables must be in ready-to-run condition, as follows (depending on the nature of the deliverables): a) For web sites or other server-side deliverables intended to only ever exist in one place in the Buyer's environment--Deliverables must be installed by the Seller in ready-to-run condition in the Buyer's environment. b) For all others including desktop software or software the buyer intends to distribute: A software installation package that will install the software in ready-to-run condition on the platform(s) specified in this bid request. 3) All deliverables will be considered "work made for hire" under U.S. Copyright law. Buyer will receive exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement). ## Platform fedora6