Just in case others are looking for help making jQuery work properly if you are also using the fValidate library... The problems mostly afflict IE6, but show up in various places - things just don't work. I'm not sure this cure all problems, but it made a huge difference in what I was trying to do.
A problem is caused by fValidate [re]defining the String.push method in a non-standard way. In fValidate-core.js, just comment out the String.prototype.push function definition. Voila. I have not yet tested whether this breaks fValidate.
