Advise needed please-ILR for dependent and new born

[call2bala]

Dear Experts

First of all please apologise me for asking the repeated question in this forum. I have found similar topics for my query in this forum but there were 2 different answers and i could not draw conclusions from previous topics. My situation is completely different from others.

I will be qualified for ILR based on (WP + Tier 1 = 5 yrs) March 5 and visa valid till 28th march 2013.

I got married in March 2011 , my wife came to UK on 25th March 2011 with me.
we got a new born baby recently from April 2012. My wife & my baby visa will run out on 28th March 2013.

I understand that to qualify for ILR dependants(adults) should have lived for minimum of 2 years inside UK with their partners. She will be completing her 2 years residence period on 25 March 2013.

My questions are
1.Does my wife qualify for ILR in March 2013? Can I apply for ILR for me and also for my wife & baby at the same time in March 2013?

2. If they qualify for ILR ,fDo I need to fill SET (O) application form for me and dependent's(wife and baby)?

3. For maternity leave my wife stayed outside UK for 70 days . I hope this is like a holiday time. Are they going to deduct this from 2 years residence period?



Thanks
Regards
Bala