Advanced Search Very Confusing

Is there a tutorial on how to set-up, use, customize and tips and tricks of the advanced search plugin.
The setup of this is extremely confusing.
Also, The search functions for this theme seem to be extremely limited.

Why is it that I cannot…?:
1. click a dropdown box of available categories
Then
2. click a dropdown box of available town/cities/zipcodes
then
3. type a keyword if desired
then
4. click a drop down that chooses within a certain radius/distance

I understand that this might not be suitable for a Huge/national type site but would be great for sites that are LOCAL or small geographically in nature.