have to agree with the killah.. I still can't shred for sh*t and to be honest.. don't want to. the best piece of advice I can give you is "practice doesn't make perfect. PERFECT practice makes perfect".

Start slowly and clearly. Make sure you can hear each note as you play it and with time you'll set the fretboard on fire. It took a while to get that point thru my head but it works very very well.....