Yes Setmadel, you are right!
I actaully was able to book for 30-October-2009 for my ILR, will be at their Solihul, Birmingham office.
I called PEO numbers and I was given an excuse that their booking systems was having some issues but I can now book online today. So I did!
How to:
at
https://ukbabooking.homeoffice.gov.uk/ukba/index.start
You will have to first register yourself and any dependent (must not be more than ten). During your registration you will have to give a unique value known only to you, alpaphet only, not less than 8 and I think, not more than 16 characters.
Then HO will send to your given email address a
Reference ID : xxxxxxxx - numeric value only, and a
Transaction ID: xxxxxxxxxxxxxxxxx - alphanumeric value.
You will need your ref and transx IDs to search and book online.
That was how I did it this morning and it worked!
All the best you guys who'll be booking online.