In one of the questions I recall your suggesting that one can place content into the text only page but that <divs> should be avoided so as to not mess up the existing formatting. Is it possible to get a copy of the current css stylesheet for that template to know what can change? Or are there limitations you can suggest to avoid compromising the template but allowing the most flexibility?

You can use div tags in the html source for the text fields.  You just have to be careful about absolutely positioned div tags.  If you are worried about your styles clashing with those of the tool just give your classes unusual names, use <div class="zazencoyots_main"> instead of <div class="main">.