I have just remembered that Chookyblue has How to.... blog bits on her sidebar so I rushed off to her blog.
Guess what there it is with a link to a previous post that Chookyblue has written on how to add photos (which includes logos) to your sidebar.
I followed her easy to understand instructions (for us that admit to being very computer illiterate) and now the swap logos are up on my sidebar.
Thank you in advance to everyone who was going to let me know how to do this and a SPECIAL THANK YOU to Chookyblue for having her How to...blog bits on her sidebar so we can find exactly how to do something on our blogs.
I just have to remember to go straight to her blog next time I don't know what to do!!!