I was wanting to test the Prefix mod just using the free version for awhile to see if it fits and gets used with my forums. Unfortunately it doesn't work. When i go to install the package I get an error.

"Error in Package Installation
At least one error was encountered during a test installation of this package. It is strongly recommended that you do not continue with installation unless you know what you are doing, and have made a backup very recently. This error may be caused by a conflict between the package you're trying to install and another package you have already installed, an error in the package, a package which requires another package that you don't have installed yet, or a package designed for another version of SMF"

"0.   Execute Modification   ./Themes/default/Post.template.php   Test failed
   1.   Replace   ./Themes/default/Post.template.php   Test failed"