[Plugin: Regenerate Thumbnails] Is there a way to change the folder of where it generates thumbnails

I just transferred my site from Blogger to WordPress so it pulled some of the images (mainly the first images) and placed them (about 800 images) in a folder “images/files” rather than the uploads directory. Is there a way to direct this plugin to regenerate the image sizes in this folder too?

http://wordpress.org/extend/plugins/regenerate-thumbnails/