These are articles are by the author of the whitepaper and will be coming every Wed for the next few weeks. They form the basis for a methodology that doesn't require dbGhost, but was the theory behind why it was developed.

As far as not having a budget, you're stuck. Any good VCS product will require some $$. I was in the same boat and developed my own manual/automated solution, mostly a process. You can read about it here:

http://www.sqlservercentral.com/columnists/sjones/vcspart1.asp

http://www.sqlservercentral.com/columnists/sjones/vcspart2.asp

http://www.sqlservercentral.com/columnists/sjones/vcspart3.asp

http://www.sqlservercentral.com/columnists/sjones/vcspart4.asp