Comment on WordPress Hacks by SEO Dave.
Dashboard >> Posts >> Categories
That gets you on the Categories editor page.
Find the relevant Category and edit or delete. If you edit change the slug spelling as well.
The above code is HTML code BTW :-) If you paste in exactly what I put above in a text widget you’ll have a widget pointing to my image and my site.
All you have to do is change the URL from to the URL you want the image to point to and change the image URL/filename to your image which you have to upload to your site via FTP. Also change the alt txt from alt=”WordPress SEO” to keywords relevant to the site you are linking to.