I just upgraded the plugin to the most recent version 1.1, and I noticed a small problem. We use the eStore plugin, and the automated e-mails that go out with purchases have the "+" symbol where spaces in the product names should be. For instance, a product name like "Sample Product" would show up in the e-mail as "Sample+Product." This wasn't happening with the previous version of the CMS Tree plugin. I deactivated the CMS Tree plugin, and the next purchase showed the product names correctly without plus symbols.