What do you want to make into a link and where? In general, you can make text into a link by typing the text, then highlight the text and then click the link button – put the URL of the page you are linking to in the pop-up for the link and click OK.
I would like to link the Amazon site and other book stores where my children’s picture book is for sale to my webpage. I found one plug in called: Page Links To. Is this the right plug in? When I tried to install it, it said to look for it in the meta box on my site. When I go to the meta box, it’s not there. Should it show up right on my website in the meta box?