XML Unit testing: XmlUnit alternatives for .NET?

I'm looking for XmlUnit alternatives, since:

• XmlUnit looks like a dead project: "The current release is XmlUnit .Net 0.4, April 2009";
• "Please be aware that the .Net code base is not as advanced as its Java counterpart, in particular there is currently no explicit support for namespaces." (that says it all)
• It's bugged Are there any alternatives to XmlUnit?
• I don't really like its static configuration: Are there any alternatives to XmlUnit?

How do you test your xml serialization/deserialization?

PS: More details:

• I'm using NUnit
• I'm stuck with .NET 2