Dymanic Search Form Using Custom Taxonomies and Posts

Hello everyone,

I'm very excited to be part of WPmudev Community and hopefully I could get answers to some of my complex questions.

I have been trying to build a Dynamic Search Form using posts and custom taxonomies but failed. I am somewhat familiar with WP, I just lack execution.

Here is the issue:

I have installed: custom posts and taxonomies plugin and did the followings:

I created taxonomies in the order bellow:

Select a State
Select a County
Select a City
Select a Zip Code

What I want to accomplish is create posts and display them under those taxonomies and populate them Dynamically. For instance, If someone Select ALASKA as a state, The next field should GET results for all the Counties in ALASKA, and once you select the desired County, the next fields should DISPLAY all CITIES in that specific County and the same goes for Zip Codes.

When a person click: QUERY (Or Submit) Results should display a URL friendly like the followings:

http://www.website.com/State/County/City/Zip/

I would really appreciate any help here, I'm clueless when it comes to PHP/MYSQL but love WP.

I hope this is my luck day