You have 3.0.2 installed? What is your operating system and which version of Dreamweaver are you running?
I just ran Site Import on the site you specified and the import completed without any issues.
Your friends over here at WebAssist! These Dreamweaver extensions will assist you in building unlimited, custom websites.
These out-of-the-box solutions provide you proven, tested applications that can be up and running now. Build a store, a gallery, or a web-based email solution.