what are the IPs of your two computers? How are they connected? Have you configured your printer using CUPS? For CUPS type:
localhost:631 in your web browser and follow the instructions for adding a printer. That's the first step. Making it shared will come later.
For creating a useful smb.conf file type:
localhost:901 in your web browser. That's SWAT. It's pretty helpful. Just be sure to use the 'guest ok = yes' options and remember that the linux permissions of your shares need to match what you're telling Samba to allow. In other words, if linux is restricting a share, Samba can't get past that.
Like -X- said, take one little bit at a time and tell us how your network is set up.