QMT-ISO Problem

I plan to use Qmail Toaster to replace my old sendmail box to become my new email server for my company.

I used QMT-ISO ver 1.4 which running under CentOS 4.6. I like this Qmail Toaster very well however, I found out few problem as:

1. User password was displayed is clear text under the vqmailadmin web management interface there.
2. I can't use the Qmail Toaster Admin page to change the the admin login password.

So may I know who had the solution to solve both problem that I had facing?