Bolting

Maybe try flexing his neck towards you so his nose is almost touching the saddle.  Keep doing this until he is totally still when you mount, then try doing it with less and less flexing.
 
Also, it would help if you do this in a comfortable area, like a round pen, or in his stall/pasture.

I would say do some ground work.  Teach hm to flex both laterly and verticly.  Start flapping the stirrups, banging on the saddle and getting him use to those sounds and the saddle moving .  When you think he is ready flex his head around to the stirrup and just step up.  If he trys getting away all he can do is do a tiny circle.  Stay there if possible and wait till his feet stop then step down.  Do that on both sides till he is relaxed with it.
 
Take him to the fence and get he used to seeing someone above him is great too as you don't have to risk the chance of him really coming unglued and you getting hurt.
 
Now flex his head and step up then lean over the saddle and rub all over his shoulder belly and butt.  As you lean over take your foot out of the stirrup and cross your legs (easier to get down in a hurry) and keep you hand with the lead line on the saddle horn (easier to jump down and not get tangled.)  Then step back down.  Keep doing that till he is calm and relaxed.  Its important to do this on both sides so that he is relaxed no matter where you are.
 
You can also take a plastic bag and tie it to a stick.  Hold it up over the saddle so that he can see it out of both eyes if he tips his head either way.  This is probably his real problem and is really scaring him.  Seeing something in one eye is one thing but when it jumps from one place to another (in his mind) it scares him.  Spend some time really getting him use to seeing something up there.  This is where that fence comes in handy again!!!
 
Now then flex him around and step up and gently set down in the saddle.  The first thing you do when you set a colt the first time is get off.  Praise him for standing then do it again.  Keep his head tipped so that he can't run out from under you.  The first half a dozen times I sit a colt I don't ask for any forward motion and work instead on just standing still and flexing both directions.  One this teaches the colt that the moment my butt hits the saddle we are not off to the races and two it gets the colt ready to be soft inthe face when it does cometime to move out.
 
Hope this helps.  Also you might look on here at some of my past training articles as they have in them some usefull tips and goes over the process of this I think in the March article.  Good luck and stay safe.  A 50 ft round pen is the best to start this in if you have access to one.

[8|]  Are your dogs really curly?

Girl what has gotten into you?  LOL you are nutty today I tell ya!!  Ok who gave you all that caffeine?

Inquiring minds want to know!  Mine does anyway!  Besides, I think you did a great job answering - and I had no clue.  She's only ever posted ONE TIME and this was it.  She MAY not even be back!  But if she does..... I'm ready for her!  I've got a cheesecake under my mouse, ready to sling!