Firstly - please don't lambast me if this is not MilesBuzz as I think it may cross the line into TravelBuzz....we'll let the moderator decide

I am on long haul LH flights this weekend and again in a few weeks. My family (wife and 2 young kids - 5 months and 2 years) are with me and we have tried to pre-book bulkhead seats for a bassinet.

We have been allocated one seat at the bulkhead (adult plus bassinet) and two elsewhere on the plane (adult plus 2 year old). I would like to be able to call up the booking line and change this if possible but before I do so, I would like to know if the plane is full and where there are spare seats.

I used to be able to check seat plans on www.checkmytrip.com but this seems to have been down for weeks now.

Does anyone else know where there is a site where I can do this. I do not have a Galileo reference but do have the tickets and they have a PNR on them (if that is important).

Thanks in advance !