While I'm fully aware Fatfree cart is not officially supported, I think you should be aware that Google and OpenDNS are both marking the Fatfree cart website as Malware this morning:
http://img.skitch.com/20090710-nxehde5c313r7n8tdqurwgjdcu.jpg
Any idea's why this is? And is it going to spread to effect E-Junkie? I think the last thing customers want when purchasing something is to be alerted that the store they are buying from is Malware! Perhaps you could investigate ASAP?