Installation problem (probably)

Hi,

I'm having a problem with installation (I think) of Cascades. I'm completely new to Cascades and pretty new to Mozilla and Composer, altho I'm an experienced web author (usually using BBEdit and hand coding both HTML and CSS). I saw a link to Cascades on a W3C page and thought I'd check it out. But so far, I can't get it to work.

Using Mozilla 1.1, I went to the Cascades installation page and clicked to install the ExtensionsPlaceholder XPI, then clicked OK to run the download/install. It confirmed that it had worked, then I quit and restarted Mozilla. I followed the same process and installed Cascades, then restarted Moz again.

Run Composer and now what? I created a document and even coded in an internal style sheet with a style rule and a <div>. But I can't figure out how to access Cascades. Maybe it's not installed? There are no instructions on how to open the stylesheet editor. I see the screenshot (and some other screenshots) but how do I get to it. I do notice some additional icons in the screenshot, at the bottom left (to the left of the status bar) that I do not have in my Composer. Mine only has the original two icons there; I saw no change *anywhere* after the installation.

I'm running Moz 1.1 on Mac OS 8.6. I also have Moz 1.0 on my hard drive, tho it's in another folder from 1.1. Could that cause a problem, such as installing Cascades in the wrong version? I nosed around in the Mozilla folder and don't see any component anywhere named Cascades or anything that looks to be new, tho I could easily have missed it I suppose. I also restarted Moz again and still no change.

Any clues?
Thanks,

Larry Israel