[Summary-Talk] Tracking visitors, best practices?

[John Readwin <appsupport@xxxxxxxxxxxxx>]

I have a client who currently has a  a site that he has done quite well 
with getting on the search engines, the only problem is when customers 
go from "his site" to the shopping cart and store, they actually leave 
his site and my server to do this, making it impossible to track who 
came to his site(from what search engine using what term) and followed 
through with an actual purchase.

I am about to create a new site for this client with an integrated 
shopping cart & store that will all reside on my server ( except the 
actual payement gateway of course).
The goal is to allow us ( him) to track a customer from the search 
engine to his site and  through to the shopping cart and purchase 
process.

My question(s) is: What is the best way to achieve this? What should I 
code into my site to allow Summary to track the visitor from entry into 
the site all the way through to purchase, while keeping track of the 
search engine he got their with as well as the search term used?

I will be using Lasso v 6 and LassoMySQL to create the site.

Also , is there a danger in losing search engine status by changing 
pages from .html to .lasso?
Do you know if most search engines now recognize  the .lasso extension? 
( I will also post this to the lasso talk list)

Thanks

John Readwin
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