How do you take the rear seats out of a 93 bmw 750il?

It seems like the right part under the seat is stuck on a bar %26gt;_%26gt; and I don't want to try to take it out forcibly and can't put it back in. I need to replace the battery because its completely dead. any help is appreciated thanks.How do you take the rear seats out of a 93 bmw 750il?http://autorepair.about.com/