Help with itunes/ipod-unable to download

Hello

First off, I am tech stupid, so please speak S-L-O-W-L-Y. I have a very old iBook and I tried to download a song recently and got a message after I tried to purchase a song - YOUR SESSION HAS TIMED OUT, this happened repeatedly. I found info online telling me to download a older version of itunes and uninstall my current version 9.2.1- did not work. I emailed Apple, and she referred me to tech support. After registering I was told my serial number was too old for free support and I would need to pay $29 dollars for help. However, I truly can't afford that, I'm a nurse who just lost her job and things are really tight for me. Any suggestions for help will be much appreciated. Thanks.

what site are you downloading from? and are you using broadband or dial-up?

Sorry but I am so stupid about all this. Broadband, I don't recall site I downloaded from, but it downloaded w/o problem, However, I continued to get timeout message when I tried to download a song. I have $15 dollars in my account, and now cannot access that. Thanks. I you need more info...