I am working on a project where their framework uses jQuery 1.3.2 and jQueryUI 1.7.2.
Upgrading the versions in the framework is not a possibility so i wanted to run
I got to this page because I have the same problem as described in the original question but the answer given does not completely solve it (anymore).
I needed to add an auto suggest to a page that has a lot of existing code using jquery, there was no easy way to just update to the new jquery and jquery ui so tried to use the newer version next to the old one.
Besides editing the jqueryui last line the jquery ui has a lot of jQuery references that you need to change as well so I used an editor that can replace using regular expression and replaced: \bjQuery\b with j$182
An in the page I added:
Now both existing script on the page and the new auto suggest are working.