It's my fault; my Whisky Society membership number ends in 323 and I keep writing 232 (cause I think of RS232) so it's a common switch I often make by mistake!
The problem with zero space can be solved by first (before installing TMS) creating a symlink from /var. When installing TMS5, it then pushes the database from /var to wherever the symlink points it to. If you don't do that, the database takes up all the allocated space in the OS area and will likely just cause chaos (depends on the quantity of media files you have; for my 16000 FLAC files, the database comprised 10's of thousands of files in 10's of thousands of directories).
There's a post on the 232 and symlink here somewhere too. 5.1 will have only a single database file and should thus not require this trick, but we are waiting for the next release as there are a couple of other issues that need fixed in it.
If you can't be bothered with the symlink stuff, it's maybe best to hold on just now and use 4.4.x until the next version of 5.1 has been released?