It looks like ObviousFX is still around. Have you downloaded the latest version, and/or contacted their support?
Sounds like a nifty plugin. I'm still on CS6 so I'll have to give it a try.
Their reverse telecine plugin sounds really handy too.
Thanks,
As for your question about growing the alpha, have you tried the built in matte choker and simple choker tools? They can be set to a negative value to expand the alpha.
-Matt
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