This is my 1st post here.. need your advice.
I moved to Singapore on EP (P1) in Sep’2010 along with my wife on DP.
We applied for PR on 15th March’2012. Status still Pending.. I blv it will take 5 to 7 months.
Since my wife was on DP, she started searching for job and couldn’t find any for last 16months. she has 4yrs of exp in with Post graduate in Finance through distant education and a Commerce Bachelor degree from a recognized university.
Recently she got a job in a very small firm (with just 6members). They applied for LoC and got rejected twice and later they applied for S-pass, again got rejected. The same month she got an offer , company applied for EP and got rejected

Questions:
1) Is it because I’ve applied for PR last month my wife’s EP got rejected?
2) Though she has a good exp, good education and a good company, what would be the possible reason for rejection?
3) When I apply for PR, I wrongly entered my year of education instead of 1/5/2006, I’ve entered 1/5/2005 however have given the right dates when I got my EP & when my wife applied for her EP . Will this be a reason?
4) Is there a way that I can correct this date for PR application?