Simple(?) Question on Ubuntu 8.10

[Rob]

Greetings folks,

Here is what should be a relatively simple question, I suspect.  In
running KDE in 8.10 I can't seem to find applications I minimize to do
something else.  For example, if I'm temporarily done with my e-mail and
want to browse to a web site, if I minimize Evolution and run Mozilla or
Seamonkey or any browser (or any other app for that matter) and then
minimize that to go back to Evolution, I cannot find it and the end
result is that I end up (apparently) running 4 or 5 instances of
Evolution.  My question is:  When you minimize applications in KDE, from
where and how can they be recalled/maximized?

Thanks in advance.

Rob