[SOLVED] how to insert links to websites

I've already asked these two questions in a thread but since I don't know how the forum works I am posting a new thread.

question 1: how can I insert a link to an external homepage in my homepage footer? not the post footer but the home footer.

question 2: how can I insert a link to an external homepage in an image pasted into a post? I would like the viewer to be able to click on the image, that would open a new window with the external website.

Thanks!