Yes, that was a problem with the prior versions. 

In order to get to the current version, you have 2 choices:

Choice 1
? Uninstall the old version
? Reinstall the new version.
-- Your data will be safe as I do not delete tables, but your settings will be overwritten.  You can work around this by downloading the config.mh2treasury.php from your components/com_mh2treasury directory and re-uploading it after you reinstall.

Choice 2
? download the current component.
? Unzip it to a directory.
? Upload the appropriate PHP files via FTP (Binary Mode!!!) to their respective directories, overwriting the current versions. 
-- Admin directory: administrator/components/com_mh2treasury
-- Main directory: components/com_mh2treasury

If this does not make sense, please pm me information on how to connect via voice mode.  Teamspeak, Ventrilo, Phone ... etc