If you have familiarity with both Webvantage and Redmine, where do they overlap? Where do they compliment each other? Which do you prefer overall, and which features do you prefer of either? Do you have a workflow that uses them both?
First of all redmine is free and written in ruby - we can change anytime we want -, but has no real support. It can be integrated with different version control systems, but frankly I have never used this particular feature.
Honestly, I've never used webvantage, but I was unable to find any usable information about it in 10 minutes, so this means something to me. I'm using redmine for almost 6 months now, and it is the best tool I had used in the last 7 years. It has it's problems, but it is flexible, reporting and issue handling is in one place etc. If you have any specific question please let me know so that I can answer your question more precisely.