What resolution are you using? For me both versions are the same size. They are basically full screen on my 800x600 workbench. I have not tried the 2.8 version from the CD.
Sadly I noticed that version 2.17 does not work for me when using from the shell, although the Readme says that it should. So I can not fully replace the original program.
And I'm not a huge fan of MUI but thanks for the suggestion.