Flying Blue (Air France, KLM, and Other Partners) - Cannot see miles expiring date on FB site

There are technical errors when I try to see my miles expiring date on all AF/KL country sites.
My last valid flight was on 06-18-2010, so when exactly will my miles expire?
If I fly a valid carbin skyteam flight on 03-09-2012, will this save my miles?

Thanks in advance.

My last flight was on Jun-18-2010, so the miles expiring date is Feb-18-2012? Feb-29-2012? or any date in March

Miles expire 20 months after last activity. If your miles are to expire on 18 February 2012 I believe they will expire on the last day of that month.

I hope someone can confirm this.

I am not sure if anybody here knows this. Most people here have status, which means they never had the problem. And those who lost their miles due to expiry are probably not FB members anymore and are unlikely to contribute here.
In your situation, if you have a significant amount of miles, I would take a short flight before 18 Feb. Alternatively you can book an award flight with your miles now, which can be for a date of up to 10 months from now IIRC. By no means would I take the risk and wait until March. The rules say 20 months after all.
There are some stories here that people got their miles reinstated (do a forum search), but I would not rely on this. This seems to be a matter of luck and goodwill, and FB were more lenient right after the rules were changed to the 20 months period, which is quite some time ago.
After all you have to remember that FB is a frequent flyer program, so they are not really interested in people who fly only once every 20 months, or even less often.