Contact Thompson Center Customer Service through their website, and request an owner's manual. Muzzle loading rifles are great fun, but instructions must be followed exactly to reduce the chance of death or serious injury.
you probably just stop and load.
A magazine
Put the ammuniton into the magazine and put the magazine into the rifle, cock it and pull the trigger..
No they won't fit. If you force it, it will ruin the rifle.
Ask a gunsmith.
Possible, but, expensive.
ask a gunsmith for help
like a hell load of cheese balls
Depends on your sensitivity to recoil and the type of rifle and load used. Generally, not bad at all.
Either can depending on the load
Ask a gunsmith for assistance.
Load, aim, release safety, pull trigger.