You find the web page you want to link. You copy its address by highlighting it in the address bar and Edit/Copy. You construct your answer text in AB. You press Edit/Paste where you want the link. When you preview the message, the weblink will come up underlined (and you can at this point press it to check its right, if you wish). You submit the message.
Thanks buildersmate
Excuse me for being thick , but do I take it that once you have edit /copy , you then close down the web page and then bring up the AB web page , if you see what I mean ?