Help Newbie install fckeditor plugin??

Hello:

I just started using TiddlyWiki and I've been trying for the last couple hours to install the FCKeditor, but I'm missing something.
Could anybody help out with step by step instructions?

Here's what I've done:
my TiddlyWiki is in a folder called 'TiddlyWiki'
I've unzipped the tarball in TiddyWiki/fckeditor

I load the TiddlyWiki file in my browser as such
file:///Users/kaliban/Desktop/TiddlyWiki/TiddlyWiki.html

I click on 'Import' from the 'Backstage' area of the TiddlyWiki.
I browse to the path of the fckeditor folder, and select a file
(I've tried any number of potential files, such as fckeditor.js, fckeditor.html, fckeditor.php, etc.)
I click the 'import' button

Now, depending on which file I've attempted to import, I either see a list of
zero tiddlers, or a message about locating available tiddlers, which then seems to hang.

I've also tried loading the files fckeditor.js and fckeditor.html into browser windows,
viewing the source,
select all,
copy
paste into a new tiddler
save
reload

This hasn't achieved any kind of meaningful result either.

Any help would be greatly appreciated!

Thanks!

I'm running Firefox 2.0.0.12
on OS X version 10.5.2
on the blank TiddlyWiki version currently available from the main TiddlyWiki site
on a PowerMac G4