Hi Jin-oh, 

Hmm.. what to say. 

1. SqueakMap is old and most people use http://www.squeaksource.com with Monticello. 

2. It's an orphan because the person who built it has gone to Pharo. 

3. Having said that, try this http://76.74.255.163:8080

It's a replacement for the SqueakMap server I've had on the back burner. Give it a try. 
I'm pretty sure it'll crash, but you could help by telling me what happens when you use it. 

That's all I can suggest, 
Chris