That's a special case. Files ending with .tgz are Slackware packages, but I've managed to unpack and compile a few in the past. However, I'd recommend you to go to RPM Search
and check if there's a Suse package for that.
I will give a little tip to you though; Wine is very, very very bad to get it to run _any_ windows applications. Make sure that you really need it. Basically, _any_ Windows application has an equivalent for Linux, usually free. I can see that you are trying to use a XP theme for KDE and getting wine to run some windows applications. This will make your transition to Linux harder then you think, because those Operating Systems are so different of each other and those tools are quite inneficient to make "Linux more like Windows". Best should be to keep learning Linux the way Linux is
. But don't you worry, everybody been there once. I did the same as you are trying to do too
is a nice table of replacements of programs that are Linux native. You are better off using them then trying to make wine to run anything else then notepad
Suse uses YaST to install/remove packages. Try always first through YaST, so you will save yourself the pain of handling dependencies as well as compiling programs from the very first start
But off course, these are just some few hints and you are totally free to try out any path you choose