My QRTP break up in pieces

This morning I tried to run vmail and it told me that voyager.server
didn’t exist !?!
After I ran helpviewer, I was able to browse the titles in the content
frame but impossible to see the text of the documents, the text frame is
definitely white !!.
I tried to reinstall these applications, I tried to found vmail,
voyager, helpviewer in the package manager, impossible to find them on
the CD, even selecting to see all packages.

What happens. Does I have a problem in package filesystem or something
else ??