CodingForums.com - jquery.ui problems

It's taken me a little while, but I believe I have finally succumbed to the power and wonder that is... JQuery. I have been bouncing from framework to framework for about 9 months, much of that time devoted to building my own. I was on the cusp of giving in to ExtJS at one point, but in the end, the fancy widgets weren't a compelling enough force to make me commit. As my own framework continued to evolve (and be rewritten) my objectives became clearer, and one of those objectives was developing a way to deal with the dom in a terse-as-possible way - you know, keep subclassing or funneling the code until it would take a line or 2 to manage complex widgets. Given another 2 or 22 years, I think my system would have been very close to JQuery.

That said, I am still a JQuery super-newbie, and although code is starting to happen and I'm starting to get the "magic", I'm having a problem with some basic stuff.

When I attempt to use the resizeable or draggable classes in jquery.ui, I run into errors. When using draggable, I get a "this.helper.offsetParent is not a function". message. For resizeable I get...
this.element.position is not a function
[Break on this error] var o = this.options, iniPos = this.element.position(), el =this.element,

I'm trying to drag and/or resize a simple div (whether it's created on the fly or in the html) all I do is add the dot-draggable() to the object and I get the error message (in FF). The cursor does change to the appropriate states (for resizeable) and obviously, from the error messages, I've made it into the code that should be doing the dragging and resizing.

Any help is very much appreciated. I also posted this on the JQuery site but I'm a little confused as to where it should be posted and when it will get answered. Is the JQuery site the best place to go for JQuery chat and questions?