I am using dreamweaver as an editor.
Click on the images and go to the Properties panel. There is an area to input Link, where you put the full web address (ie http://www.google.com). You may also want to fill in 0 where it says Border. If you can't find the Properties panel, select your image and then use Modify... Selection Properties from the top menu.
If you (hopefully) decide to abandon Dreamweaver for good and get into the nitty-gritty handwritten code, you'll use anchor tags like so:
<a href="yourlinkhere.html"><img src="yourimage.jpg" alt="description of image" /></a>
Learn everything you need to know about handwritten HTML at http://www.w3schools.com/html/default.asp
You'll be surprised at how much better control you have over your code and content!