[rules-dev] Drools.Net project status and availability of paid support

I'm interested in using drools.net to implement a solution for a client. I'm specifically interested in using the decision table functionality based on spreadsheets. The remainder of the code in the solution is entirely based in C#.NET My client is concerned by the fact that the last build of Drools.net was in 2007. The client also requires paid support in order to select this as part of the solution. Can anyone provide details of the status of this project? Is it stagnant? Does anyone know if paid support is available? In the event that Drools.NET is no longer supported, has anyone successfully implemented a project using Drools (not .NET) from C#?