i think the tool was disabled from Google spies so that you can not find out the contents of the list ...
Will I have a way that i use in Google,Iam not quite sure about how accurate it is, but I think that it does. google pay so much attention to the domain keywords. For instance if somebody searching for make money makemoney.com ( if indexed and unboxed) should appear first unless a competitor with so many backlinks targetting this word. So, if you type make money and you site appears in the first few pages at least,that means that you are not in sandbox, but if it doesnt appear then its very likely its in sandbox. Their are other things that you need to consider,but this is a rough idea.