When I have to sign?

See Project:Rally-2011-04. It starts in ~52h40m.

But do not let that keep you from contributing NOW! If you're in it for the money, you're probably in it for the wrong reason.

Siebrand19:14, 20 April 2011

No. I'm not here for the money. Please see my contributions friend. I've been a translator here for more than 6 months. I've been translating many projects. You can see my user page. Now also I'm translating the OPEN IMAGES. I'm not translating for money! Please understand myself.

I wrongly considered that yesterday was 22nd April. That's why I asked "Shall I start translate?" No other reason in it. Please understand friend.