It depends what features you're after. Take a look at our Traffic Monitor which is part of the Marketing Manager series of add ons (works stand alone or as part of Marketing Manager pro for x-cart).
It's purposes are different to sales and stats, but you may find it extremely useful!
Traffic, Visitor and referer Monitor for X-cart
http://www.firetanksoftware.com/fts/customer/X-Cart-Add-on-Modules-cid-5.html