Installation in Open SUSE Linux 10.2

In open Suse Linux - I have not idea how to install programs!

1.) IF you are actually able to install a program on this version of linux, should it show up in your applications browser somewhere?

2.) All of the programs that I am trying to install have a makefile, and the only instructions I seem to be able to find on installing are from a terminal program doing the following:

jeff@linux-o7os:~> cd torrentbubbles
jeff@linux-o7os:~/torrentbubbles> make
make: *** No rule to make target `/usr/lib/qt3/mkspecs/default/qmake.conf', needed by `Makefile'.  Stop.
jeff@linux-o7os:~/torrentbubbles>

jeff@linux-o7os:~> cd aircrack-ng-0.9.1
jeff@linux-o7os:~/aircrack-ng-0.9.1> make
gcc -g -W -Wall -O3 -D_FILE_OFFSET_BITS=64 -D_REVISION=`./evalrev` src/aircrack-ng.c src/crypto.c src/sha1-mmx.S src/common.c src/aircrack-ptw-lib.c -o aircrack-ng -lpthread
/bin/sh: gcc: command not found
make: *** [aircrack-ng] Error 127
jeff@linux-o7os:~/aircrack-ng-0.9.1>

(I know for a fact that each of these directories have a makefile)

3.) It never works! I have been looking around the forums and stuff and there is a program called YaST that is supposed to be some program manager or something that comes integrated with Open SUSE 10.2? I will hit Alt-F2 to bring up the run prompt and then type in YAST like it is instructed on
http://en.opensuse.org/YaST_Software_Management

All this stuff is driving me crazy! I don't even know where to look first - I don't know how to install anything, so I don't even know how to go about installing an installation manager like YAST
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