Linux CentOS Server Config

I have a new CentOS 4.5 server and I need a solid linux admin to get it running. I have already installed the latest source apache, mysql, vmware server and a few other small tools but yum seems to be broken. The goal a) Install the latest yum and make sure it works. b) For 14 years I've used sendmail but I'm looking for a more rhobust mail server that has better support for virtual domains and a web gui so I can add users simpler. I was looking at Zimbra but will take suggestions. This is for less than 30 mailboxes but traffic is high and I really need to support pop3 ssl/secure smtp with auth. c) configure chroot ssh d) setup mysql daily backup, I will provide a remote location to scp the backup file. you will dump mysql, and encrypt the file before sending. e) install and configure icecast. I currently have icecast running for one streaming station on another server. I will provide the exact config I'm using now. f) install/update/configure vim so that color syntax works correctly. g) install and configure php5 with mcrypt, mhash, mysql, and other reasonable modules. h) install and configure ImageMagick including php extensions. i) Install vncserver. There is an X11R6 directory but vncserver doesn't seem to want to install. j) Move ssh from port 22 to another port. ## 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 CentOS 4.5