[Radiant] Page Attachments extension - installation instructions no longer work

[Jon Evans]

Hi,

I've been trying to install the page_attachments plugin from these  
instructions: http://wiki.radiantcms.org/Installing_Extension_-_Page_Attachments
, but they don't seem to work any more.

I'm using the Radiant Gem 0.6.4. The error I get is:

[shiny]:~/rails/site evansj$ rake production db:migrate
(in /Users/evansj/rails/site)
rake aborted!
uninitialized constant PageAttachmentsExtension::Technoweenie

I tried ignoring the bit of the instructions that says  
"page_attachments requires Radiant 0.6.2, so either freeze edge or use  
the 0.6.2 gem or later", and did a rake radiant:freeze:edge anyway,  
but it still didn't work.

I even tried creating a brand new blank radiant installation, with a  
brand new database. It still gave the same error when I tried to  
install the plugin.

So my first question is, what is the new procedure? :)

Secondly, would I be right in saying that most of the action is  
happening on the trunk, and I should just go for that? How stable is it?

Jon