I was going to write a webbrowser plugin for mediaportal ( I'm a retired senior software developper ) when I found yours. I don't want to re-invent the wheel so I installed it, but this 0.2.7 version has a compatibility issue with the latest version of mediaportal.
I found a 0.3.2 version that I could install but it does not work, it hangs and shows funny numbers besides controls on the web page.
Do I write mine or do you think you can make it work soon ?
My OS version is Windows 7 Starter, and mediaportal is 1.2.2
For bugs: please report them in the forum
And those numbers: These are the numbers you have to enter (with your remote) to navigate to that url.
So I don't think writing your own plugin is necessary