You may not need the aol software at all to connect although some services may not be available - billing, live chat and parental controls. From what I could see at
www.thinkbroadband.co.uk if the connection is via router it should be a case of entering user name and password as normal. See
here 1st post by MrSaffron for more details.
This guides are intended for windows users but there is nothing there that can't be done in linux.