@ecommerce: my pleasure
Regarding the SQL patch, the SQL that you just referenced SHOULD be in the install documentation. Yes, that SQL needs to be executed (once) to ensure that XC SEO is installed into your X-Cart database. Be sure to follow the steps in the install docs, and refer back to this thread for the current Froogle fix. (on page 2 I believe)
@mrkenzie: I apologize, I missed your post. Another user has already switched from DSEFU to this mod, but I would not recommend switching just yet, otherwise users & search engines may experience issues accessing your products/categories (or they may even encounter duplicate content).
in the near future, I'll implement support for users migrating from the other SEO modifications, I'd suggest that you wait until then, so that you don't lose any PR for your site