The exact same thing happened to my external a few months ago and after a bit of searching I came across TestDisk. If you've had other free software find your files then TestDisk surely will as well. The advantage is that it's completely free so you'll be able to copy your files to another drive within the program itself without any cost.
Here's a helpful step by step guide: http://www.cgsecurity.org/wiki/TestDisk_Step_By_Step#Quick_Search_for_partitions
Thanks for that, I'll have a play around and see.
Cheers
Seems pretty complicated to be honest, I'm running it and it's searching but I can't really get my head around it to be honest.
Seems people are saying you can't recover stuff and have to download other problems.
I got the message can't open filesystem. filesystem seems damaged.
So I googled that and that leads to lots more stuff.
It's just not going to happen man, I've already come to terms with the fact that the drive is gone.
Thanks anyway mate.