Upgrade usermin webmail version

Hi,

I always install on servers the webmail version of usermin; however, from time to time I upgrade my webmin and usermin installations from the web interface and there's this issue with usermin: i go to webmin > usermin configuration > Upgrade Usermin > Latest version from www.usermin.com > Upgrade. The thing is it's trying to upgrade the usermin-webmail RPM (i use mostly centos 5) with the standard usermin RPM from a sourceforge mirror and I get a conflict so I have to manually download the new version of usermin-webmail and do a rpm -Uvh. Can we have webmin/usermin to know what version is installed and upgrade it properly?

Thank you!