How to get Battlegrounds working with 4.0.6 [Skyfire]

Hey guys, I'm pretty new to this stuff. I tried searching but I couldn't find an answer. :(

So here's my problem:

I tried both http://mmofuse.net/forums/f163/%5Bub...3623%5D-18616/ and http://mmofuse.net/forums/f163/%7Bre...-repack-18599/ and they work pretty good, the problem is I can't figure out how to start a bg. I already did

Code:

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.debug bg

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to set it 1vs0 but I can't queue up or anything else.

Any idea? I'd like to stick to Skyfire because I already have 4.0.6 client installed and it would take forever to download the complete 3.3.5 client.

greetings