That did it, thanks.  I found the info at

http://msdn2.microsoft.com/en-us/library/aa833231(VS.80).aspx

Some extra attributes are required on the extensions line:

<extensions assembly="CustomCondition, Version=1.0.0.0, Culture=neutral, PublicKeyToken=<enter key here>" version="1"  xmlns="urn:Microsoft.VisualStudio.TeamSystem.Data.Extensions" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="urn:Microsoft.VisualStudio.TeamSystem.Data.Extensions

Microsoft.VisualStudio.TeamSystem.Data.Extensions.xsd">

Note...

Hi,

I have implemented the code pretty much as written, but am having trouble getting the test condition registered. 

Your article does not describe how to add the assembly to the...