Last time this came up I suggested the version detection regex is "outsourced" to the author community itself.
http://www.wowinterface.com/forums/s...5&postcount=11
I still think it's a good idea and with a way to submit versioning schemes and test them out I believe we'd get 99% detection before long.
With better visibility maybe some of the outliers with odd versioning schemes would help or switch to an easier format.