i did reinstall my license and then went to nebula's disk page to check that my name was there.
EDIT: it turns out that my problem is with my SER files because i recently upgraded my pc and laptop...waiting on new SERs right now. Just wanted to post back so that no one thinks there's anything wrong with the plugin or the new browser based on what i'd said.
everything's working great here...except me apparently.
It remembers where you were even if you hit cancel and re-open. You can go up a level, or go to the topmost level. It even has a quick search that filters names. I guess you just have to compile a directory structure from the program info's.