It sounds like your a2sd+ storage is working, but the ratio is wrong: for comparison, I'm using 83 MB internal and 222 MB A2SD+. Also your internal storage has gone up by a further 15MB in the last few posts?
There are other things use internal storage, but this does seem odd to me. Could you start the terminal emulator again and type the following commands:
su
ls -l /data
You should see the following amongst the output: "app -> /sd-ext/app" and "dalvik-cache -> /sd-ext/dalvik-cache". If not, then something hasn't been set up properly (which would be odd, since with GV this is all in by default).
There is an "a2sd check" command you could type.
If it looks like apps aren't being placed on the partition, or the link is missing, you could try typing "a2sd reinstall" - I've never done this (never needed to), but it claims this should move apps to the partition and undo anything blocking this.
Also just check under CM settings that you have the install location set to phone, or at least automatic? And maybe look at the manage applications menu to see where it thinks your applications are (if a2sd+ is set up right "phone" is ext, while "sd" is google-style SD).