As of 1/1/2007, We will not be accepting new orders for SylvanMaps, as Microsoft has pretty much dropped ActiveX.
However, support will be provided to existing customers as long as they need it.
Additionally, the source code may be purchased for internal support purposes.
If you plan to switch to .NET, I recommend the SharpMap open source project - very well written, similar to SylvanMaps in some ways, much better in many. Plus it is free.
If you want to stay using SylvanMaps, and need something special you can contract with me (Roger Bedell)
Write me at firstname.lastname@example.org if you have questions or comments.