[vincent_g]

They are adding nothing

Maxmind has a few different services
GEO IP and Fraud checking

Min-fraud is popular which lets you know how far away the IP is from the given address
Also lets you know if they are using a proxy
and ranks it on a fraud scale
This is what the mod should be doing.
It should be setup to use Maxmind's min-fraud service

The service is free for 1,000 queries

I believe this is the best way to avoid fraud
For those that want higher level of checking they offer phone verification and even will call the person

Now here we have X-Cart piggie backing off a service that is complete and charging more for it than you can get it for direct.

There is nothing they can add to it to improve what Maxmind offers so don't believe that for a second.