Thank you for the suggestion. I changed the file name to catalog.xml and that helps. However, I still have to go one more level after My Documents to get to the catalogs. I am in Trook 1.4 and the folders look like -- My Documents>Calibre>Main Catalog. I thought that the catalog would be visible from the My Documents folder. Not a huge deal, but the less digging I have to do the more I'll like it. Otherwise, I may just go back to using the shelves.
I've nearly given up trying to use tags in Nookdevs Library. It shows my tags in there, but there are about a million other tags I didn't put in there and won't use and make it more trouble than it's worth. Any help with this would be appreciated.