Vania,
there are several forums, but not Indonesian only forum
There are forums called
http://www.eskimo.com/~parents/webpre//dv/messages/index.html
Try it and do some search.There are several Indonesian CP post over there.but the search engine is not good,and you should specify the key word in detailed for it to do the job.
ie: type CP in Jakarta for the keyword.
You are very lucky to received your NL since late May.I am still waiting if I am lucky this year.
Also,usually for Asian REgion, the NL are send/post from Sweden or some other European country that provide bulk mail service.Yes it is issued by KCC,but physically posted from other country.You can check it on the post office stamp.
But if yours are posted from USA,that is new to me.
I also based in JKT like you.Two more question, how many times you try the dv lottery before you win this year?and beside your husband,do you have kids that you apply with you for the DV lottery?
Good luck and please don't forget to kindly reply to my two question above