Personally I think it’s a lot easier to download a small program for free to do your image mapping for you, but it’s up to you. I have quite a few image mapping tutorials, so try them all to find out which way you like best. Image mapping is where you have part of an image clickable; you can click it and go to a menu or another site; an example is at the bottom of this page.
Open the image you want to map in PSP. Make sure it’s already saved with the file name you want.
Go to File > Export > Image Mapper, and then follow the instructions on this pic below, starting with drawing your shapes.
Once you’ve clicked the eye button, a preview of your image should appear in your Internet browser. Right click the page that comes up and select ‘View Source’. Then copy all the code and paste into a page of your web site. Make sure you put the page in the same folder as your image, or it won’t work unless you alter the image name.