Hello.
It looks like pretty easy. I know easy way to automatic convert C# code to VB.NET code therefore your work can be done in few hours. Also, I'm able to start right now.
$30 USD in 1 day
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6.1
6.1
10 freelancers are bidding on average $113 USD for this job
Compile in C#, then use reflector to disassemly the .exe in VB.NET, repair some minor bugs, and then you have it ready in VB.NET code at all. This will take a few hours only.
Current development environment is Windows 8 which I can use Visual Studio Express 2012 for desktop. I can deploy application in both Win7 and 8 for testing.