Matching Data Mining Tutorial Results

Hi All

Microsoft released an introductory tutorial for data mining in September 2007, and I was attempting to match the results on:
http://msdn2.microsoft.com/en-us/library/ms169911.aspx

I was not able to match the results, so then I went "under the hood" for the tables, and discovered that my copy of AdventureWorksDW has truncated values in the Education field of the ProspectiveBuyer table. I had wanted to connect "EnglishEducation" from the Mining Model to "Education" in the "Input Table" to see if the additional linkage would affect the prediction results (the wizard does not automatically link these fields because they technically do not have the same name).

1) Is everybody's "Education" field in the "Prospective Buyers" table populated with truncated values? (which may be intentional since it is a sample dataset) -- compare to "EnglishEducation" field in the vTargetMail table

2) Am I the only one getting 0.50580 for all rows when I use "Decision Tree" (per the tutorial instructions)? By contrast, I was able to see a variance in expression values for clustering and naive Bayes.

My guess: everybody has a truncated "Education" field, and there is something different in how the data mining model was run under the Decision Tree option to yield the tutorial's numerical results for "expression".