Take it from me weave poles take forever to learn, a friend of mine who's an instructor says it's because it's not a natural movement for a dog...after all in the wild you don't see a lot of things in a tight row to weave in and out of.

There's actually a couple of different ways to teach weaves as well. There's the channel system where you make a channel with the weave pole a let the dog run through the middle and then slowly decrease the channel. You have to have a certain type of pole to do that. Then there is the wire or gate method, that's where you have the weave poles set straight and you gate each side so the dog has to follow a specific path, the wires work the exact same way except that the dog has a chance to jump over the wires.

If you decide to use the gate method with Rusty which I might recommend you do remember to always have the entrance on the left side of the poles. Then have gates runing from pole 1 to 3 on and three to 5 on one side and from pole 2 to 4 and 4 to 6 on the other, making sure that the exit is also on the left. In competition the dog never enters or exits weaves from the right. Also when you're first starting don't approach the poles at angle, approach them straight on and help the dog find the entrance. Approaching poles from an angle is a very advanced move not only for the dog but the handler, when they approach at an angle the dog can't see the rest of the poles so they don't really know that they are there, while approaching head on the dog can see all the poles and also can find the entrance.

Just keep training and keep positive and I'm sure Rusty will become an awesome agility dog. Take it from someone who knows it can take an awful long time just get one piece of equipment down and even then the dog might still have issues but as long as you keep at it they will eventually get over it.