Some training tips please. =)

[Akira]

Our boy adam is about a year an a 1/2 now, and hes is the sweetest most cuddly dog I have ever owned. He loves all of our friends and family and is great with everyone we allow into our home. He has only one flaw, that I can't for the life of me, fix. He barks like crazy! He hates bicyclers, rollerbladers, those scooter things, any thing other then a vehicle he hates! Plus, anyone who walks by our street, he barks and barks and BARKS at. ESPECIALY if there on a bike. Oh, and he goes even more nuts over the neighbours outdoor cats . We live in a duplex and whenever our connected neighbours let there dogs outside he goes bazerk and jumps on the railing of a deck and barks, and I can't get him to stop and when I try to pull him off and get him to stop I just end up getting hurt so I just give up and feel like honestly crying. He knows what the words 'quiet' and 'stop' mean, but they mean nothing to him when theres somthing to bark at. Theres a been a few times when ive been in the back with him and hes barking at somone who asks if they come over he would calm down, and they come over and he stops and wags his tail and is as sweet as he is with everyone else. How can I get him to stop barking at people and people on wheels?

Any advice is good advice.

[Akira]

Whoops, I guess this should be in the behavior section. Sorry!