You can sure apply now for extension but i think it will be extended for only 2yrs but still u will cover ur 5years by Jun 2012.. having said that you need to be ecnomically active(benificial to the UK economy) with having a job/earnings when you apply for ILR.. just my 2cents..
Worker Reference No. is required to be filled by those who were on WP Visa earlier, which can be found on WP Letter issued n if you r not you can leave this Q blank;
If the 3months bankstatements with the latest date on it you submitted with your application is less than 1month and with min required funds maintained everyday in those 3months.. then u are OK
If there is no clause in ur old company to give a notice period/ resignation formalities.. you should atleast let them know by email or letter so that there are no loopholes at ur end.. so that ur old employer will inform HO that u r no longer working for them
just to be safe for future...
Please read HO GUIDANCE which clearly says "You can use only 12Consecutive (Contineous) months salary in the last 15months; it can be 12 or less than 12months.. so you can not use from June 09 - Aug 10; For Bonus amount.. if you can get a letter from employer about the payment with exact Net de...