Hi! I bought Vegas4 about a month or more before, I was busy, couldn't keep track on all the changes about vegas 4, today my friend told me by this time vegas has changed (added) 3 things that I should have upgraded (download), just now I checked the website, there I see upgrade vegas 4.0c, then what about 0.a or 0.b? am I loosing those or what to do now? Please suggest me, I appreciate your cooperations.
Thank you.

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