Doiron : I had to do that for the new feature as it took time and effort,
Anyway, regarding your first post: adding features will always lead to a larger userbase, thus giving more sales. If the price should reflect the time and money invested, buying a movie would cost millions of dollars (it's an old debate which pops up from time to time, though).
I can understand a price increase, but I still think that adding 70$ to the original 130$ price tag is too much for a necessary maintenance update (vista compatibility), VB/JS scripting and streaming downloads. Personally, I would prefer to invest money on stable support for all major browsers (maybe it's just bad luck, but out of three browsers only IE worked as expected and I have no compatibility problems whatsoever with other web based softwares).
Another suggestion: could you add an install which includes VB runtimes, so that the user doesn't have to install them separately?