Choose/Install/Teach versioning software

I need someone to select and install versioning software on my Linux server. This will be used primarily to help track changes made to Word, Acrobat and Xcel docuemnts. I am looking for something like Concurrent Versions System (CVS), Subversion, etc. but it can be something different that you are familiar with. 1) The software needs to be open source or less than $50 to buy. 2) Must ber VERY easy to use. Some of my team can barely use Word, they will have trouble if the software is too dificult.. 3) It does not have to be very sophisticated - check out and lock files. Open in read-only mode if checked out or "owned" or locked by someone. Allow for comments when checking back in, or even just the ability to comment on the files. Your bid will be to tell me which application you will suggest, install it, and provide one hour of training/help via msn messenger. ## 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 Linux/Apache/CentOS