It is quite simple, but you need a couple of lines in php, and of course, the page has to be saved as php and not as html.
Insert two editboxes (withour form, just the edit boxes) in your page, as in the picture bellow. Double click the first one (for the Date) and, as initial value, give it:
"<? echo(date("l jS F Y, g:i A")); ?>"
Do the same thing for the second (the IP address) , and as initial value give it:
"<? echo $_SERVER['REMOTE_ADDR'];?>"

Of course, if you don't want the editboxes, you can simply insert two small html boxes in your page. In the first one, paste the date code: <? echo(date("l jS F Y, g:i A")); ?>
and in the second, the IP code:
<? echo $_SERVER['REMOTE_ADDR'];?> Move the boxes wherever you want them in your page. Remember that in both cases, the page must be published as php.