If I understand you correctly, you need an HTML editor, right?
Dreamweaver MX is more or less the industry standard, and it allows even total newbies to make simple webpages easily. Mozilla has it own editor, though I have yet to try it out and can't vouch for it. And there is always trusty Notepad, though if you're looking for ease of use and as long as the webpage is going to be relatively simple, this is probably not the best choice.
Or, if you want, you could use Photoshop, which also has the capability to make webpages through its "slice" feature, though I wasn't all that impressed when I used it.
BTW, whats the campaign?