Jon
I would never have guessed you were using the Sony. You've got some really good images out of it

Next match you do (Day Match) try doing the first half in Aperture Priority and the 2nd half in Sports Mode. I am convinced you will notice the difference.
5 years ago I started off shooting the Celtic Crusaders away matches. I was turning up to the likes of Bramley and Featherstone with a basic Canon 350D and shooting in sports mode. I started watching what the pro's were doing and started to follow them. Before I knew it I was shooting much better images and getting more satisfaction out of it.
Several years on I am now signed up to an agency that provides images to both National and International Newspapers and have done Wembley 7 times and covered countless Internationals at varying sports. But I never forget my roots .......and glad to offer advice.......
Software that could help you on your way includes:
1) Photo Mechanic - (for captioning and viewing)
2) Photoshop CS4 - (for editing, cropping and retouching)
3) Noise Ninja - (to delete grain from pictures)
There are also some very good actions out there to add "punch" to your pictures. By that I mean enhance the green pitch. Reds look more colourful and pictures look less "washy".
For reasons of licencing I am not allowed to put my own images on here but feel free to have a look at my collection at
www.actionplus.co.uk (just type keevil) into the search bit.