Hello,
Current means when it's your turn.
SO let's say your Case number is 5654 and your are from Europe. It means you will be the 5654th person to have the interview at the embassy. But when will this be? Since the embassy cannot take everyone all at once, the US gov publishes every month a list of all Case number "current". That is, all case number that will be called for the interview this month.
This publication is called the Visa Bulletin. It is here:
http://travel.state.gov/visa/bulleti...etin_1360.html
For example, click on October 2010 , go down to B. DIVERSITY IMMIGRANT (DV) CATEGORY:
Look at the Table and you see EUROPE 9,600
SO it means in October the first 9,600 case number (from 1 to 9,600) will be called for the interview.
Since in our example your CN is 5654 , then you will have your interview in October. (btw if you look at the next table in C it tells for CN that will be called for interviews in November)
But if your CN is lets say 35,545 it means it's not your turn yet.
Easy right ?
TO have an idea of when you will be interviewed, you need your Case number and look at previous month of past lotteries (Archived visa bulletin) to see approximately when 35,545 will be called.
So when you see that your CN number is within the range of the Visa bulletin, you are CURRENT.
At some point, all case Number will be CURRENT and the visa bulletin will simply show CURRENT, meanings that all case number have been called for interviews.
