Good action shots but they are all severely underexposed. You should be able to sort this out with curves and levels in photoshop. Apart from that i can't be much help to you i'm afraid as i don't do sports photography.
which photoshop you using? I would recommend getting Adobe Photoshop CS4 book for digital photographers as this will help you greatly (or the model you are using, i personally have CS4 and learnt a lot from that book)
i hope this will help you out and good luck, keep trying and try not to underexpose your photos next time by making sure your iso is high enough and your f stop is low enough that you can get light and a fast shutter speed.
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