although we do recommend it to ensure your online success, you don't "need" SeoSamba to run an e-commerce website. You can always run any number of free SeoToaster-based websites without having to pay any fee for SeoSamba multisites services.
SeoSamba is a FREE online marketing platform that provides automated SEO, web analytics, reputation monitoring and social networking tools.
To take advantage of your SeoSamba subscription, start by opening a free account from your Website ID Card (SeoToaster menu). Check the analytics box at the bottom; add your secure token and SeoSamba will automatically deploy our web analytics software.
Now, if what you are trying to achieve is to run a multi-sites ecommerce network, we strongly recommend using SeoSamba as a hub and SeoToaster as front-end for each instance. Our patent-pending 'hub & spoke' model will allow you to control all individual websites from one centralized management interface, and benefit from countless features.
For more information on how SeoSamba multi-sites solution compares to Wordpress Multisite (WPMS) please read http://www.seosamba.com/wordpress-multisite-review.html
Pricing for the SeoSamba solution is based on number of domains and services activated, please use http://www.seosamba.com/i-want-a-demo.html#mulsites-ecommerce
for more info.
Hope this helps, keep us posted!