Treehouse Issue

I am referring to the SW labs Treehouse app found here:

http://labs.solidworks.com/Products/Product.aspx?name=treehouse

(I didn't know where else to post this)

In Windows 7 64-bit...

With SW2009 SP4.1 active in background, on "Export to SolidWorks Documents" function, I am getting a message:

"An older version of SolidWorks is running. Please exit it before exporting. Version running: 17.4.1".

If I close SW2009, nothing happens (no files are created in my destination folder).

If I have SW2010 PR1 active, I get the following error:

"An older version of SolidWorks is running. Please exit it before exporting. Version running: 18.-5.0".

Any suggestions?

SolidworksAssemblies