Sorry no there is not an importer for that. In fact I have never heard of any product named My_eGallery
There are tons of little gallery systems flying around. We have created importers from most of the direct commercial applications that are our direct competitors.
Thank My_eGallery is a module for php-nuke forums phpBB2 resembles Coopermine.
There is a way to make a massive import folders on the server where the photos.
You can bulk import photos from specific server directories sure. All those photos would be assigned to you though since thats how a bulk upload works but is a good way to populate the gallery so as to not start completely fresh.
On the upload page when logged in as admin you will see the bulkupload options to change the server path to where to look for images and the skip upload and process files in directory boxes.