I have installed the 3.2.3 deb on Ubuntu Linux, but I'm still on 3.2.2 when I reopen the application, and when I check for updates I'm informed there is one. I have installed and reinstalled. Still 3.2.2 whatever I do. Am I missing something here?

try getting v3.24

I did and the application installed and when I check for updates there's none. But when I do "About Tixati" it still says 3.2.2. I do not care as long as I got the update but just wanted you to know.