Hell, we're always looking for interested players willing to invest time/effort into expanding the game outside of the client with a background in programming.
However, we currently only have 2 .NET platform applications; TNT: Glycerine and Mids Hero & Villain Designer; both public releases are currently in VB.NET however...
No VB.NET is not our favorite language, I guess it just was for the original developers; as we've been in discussion on migrating the sources to C# possibly even Java in one case... but until a product is finished it's all vaporware and hearsay.
TonyV is working on a series of projects, one in C# that's been kind of shelved; but he might enjoy a helping hand...
But regarding the origin of your post...
The on-line planner is php with a metric-<bleep>-ton of javascript. And Mids' is written in VB.NET (2.0.NET). So I don't know what other languages you might know... but that kind of truncates what help can be given by your skill-set.