HERE'S HOW
1. You have to format the microsd card in the NTFS format rather than FAT. Then you can install programs onto the card and they run (I also installed Photoshop Elements on my 32 gb card as well.)
2. Then install Logos 5.0. Its that easy. I didn't use hardly any of my very limited c drive space.
3. If you already have the resources and want to avoid redownloading and reindexing, be sure to select Custom installation and uncheck “Automatically Download Updates". Follow the suggestions here (method 2 or 3). http://wiki.logos.com/Quick_Installation_onto_multiple_comput