Editing the recording

Last night I tried dragging my audio file into my garageband recording seeing that it didn't save properly and I could see it but I couldn't hear it. I was totally freaking out because I had my volume up to the max.. but after trying it today at uni.. and with Damien's help I realised that my version of Garageband is too old. So I'm going to have to edit my recording at uni, which should be fun seeing that the uni computers are so slow.