>I've registered my version of VFP 6.0 but now, I'm going to install the program I've developed on 4 additional computers. I've heard you don't need to obtain additional licensing for multi-client FoxPro designs. Does anyone know if that's accurate?

You can distribute anything you build, plus the VFP runtime. You can't distribute the full VFP Tool. Also check the agreements for any ActiveX controls you used or similar.