thanx for your comments guys
i didn't know how i deleted the alpha channel...

anyway i've fixed it...the spear looks ok now.
also i adjust the yellow part of the armor, make it more shining now.
btw, i did not compress this texture so it's quite big. if u want to use it in your map plz compress first, this will save about 90k in size.
i've resubmitted the skin file, but why the snapshot not change? its still the old one ...