ok... first of all i would recommend re-partitioning and making a 200 MB swap (i know people with 512 MB of RAM and their swap is almost never used).
THen the easiest thing to do is make 1 big partition for all of your linux OS (linux takes up about 2GB but you will probably want more than that to add software and such). When you install, you can choose to put "/" on your only linux partition and it automatially will have the other mount points under "/" as subdirectories.
The way the install is talking about is you can separate your hard drive into several different partitions and give them each a mount point, the mount points are kinda like subdirectories in windows.
/tmp is where temporary files are stored'
/usr is where user (personal) documents are stored
/var is where variable information is stored, such as a website
/etc is where the linux configuration files are stored
/boot is where the boot-up files are
/home is basically a personal documents folder (it will usually have a subdirectory with the users names)
/opt .... i'm not sure what it is for, because i am using red hat and not SuSe.
hope this helps