I am having trouble pasting Google AdSense Code into my website using Website Tonight 4.0 (godaddy is my host). When i paste the code, nothing at all appears in preview. Does it just take time for ads to start appearing?

There should be a default ad that pops up. I'm not sure what website tonight is but you should paste the code directly into the code of your page. Maybe website tonight is stripping something out for some reason.

If would try using something like dreamweaver to edit your files instead of website tonight!