Hi domoreforless,
1) Well it sounds like you're entering html into the design editor. However, I'm not sure why you're not seeing the "Switch to Text Mode Link" above the editor. To remedy this problem, I recommend using an alternate browser. We recommend Internet Explorer 6.0 and Firefox 1.5 for best performance with our site. A free download of Firefox is available at http://www.mozilla.com .
2) The only place your Auctiva username will appear on your listings is in your store window header. However, this header text can be changed at Auctiva -> Store(tab) -> Store Window -> Edit Store Window.
-Mike