Description of problem:
up2date reports 0 kB as the size of most packages

Version-Release number of selected component (if applicable):
up2date-gnome-4.3.40-1
up2date-4.3.40-1
rhnlib-1.8-6.p23.fc3
rhn-applet-2.1.11-1


How reproducible:
Every time.

Steps to Reproduce:
1. Right click on Red Hat Alert Network Icon and select Launch up2date
2. Select defaults until you reach Available Package Updates screen
3.
  
Actual results:
See screenshot

Expected results:
Actual package sizes

Additional info:
When up2date does the "testing package set", it is possible to get an
error that indicates that it needs additional space on the filesystem,
even though the package sizes are listed as "0 kB".  Also, the "Total
size of selected packages to download" is also incorrect on this screen.
Calculating the actual space to be used would be very
processor-intensive (probably requiring several RPM transactions as is
done before installation, and to generate the error I described
above), but should this not be estimated based on the size of the
files, if not the actual information within the RPMs?  Thoughts anyone?