Although, it looks like there's a weird issue there at the moment, so
instead you'll have to go to direct to the directories:
http://cfeclipse.org/update/plugins/ and http://cfeclipse.org/update/features/
At a minimum you want the main 1.3.4 jar files from each:
org.cfeclipse.cfml_1.3.4.200906240705.jar
org.cfeclipse.cfml.feature_1.3.4.200906240705.jar
You can optionally download the other files as required.
Place the files in your {eclipse-dir}/plugins and
{eclipse-dir}/features directories as appropriate and (re)start
Eclipse.