Firstly welcome to FT!

I strongly recommend you read the stick at the top of the forum which can also be accessed via the link below:

http://www.flyertalk.com/forum/bmi-d...s-lounges.html

I would suggest you read up about the ANA tool which most people use to find availability on Star Alliance carriers and has been a god send to most of us. Don't expect the process to be easy, but you will generally get what you are looking for if you have a little flexibility and are prepared to look across the alliance rather than just focus on one or two carriers.