Note: This extension merely adds the jQuery library into Komodo's chrome, so it can be used in Komodo Macros and other extensions. It does not in any way add features for using jQuery while developing web applications, for example. Komodo 4.3.1 Already ships with a spiffy API Catalog for jQuery code that should provide excellent autocomplete support for jQuery 1.2.*.
A simple test of jQuery in Komodo would look like this:
Update: This extension is now updated for jQuery 1.2.6 and Komodo 5.