Hi there,
We got our first dogs back last October - two springers 8 weeks old

Now, no way am I an expert, lots of folks on here have years of experience, and I only have a few months... but here is my twopenneth anyway :0)
To be honest, training has to start the minute you take responsibility for the pups - decide what you are prepared for them to do as full grown dogs, and train accordingly (ie - don't let them lie on your bed as pups, if you they won't be welcome there when they are big, hairy and smelly

) Just be firm and calm with your instructions, pups soon pick up on the difference between praise, and a command.
My son did alot of the initial training, sit, and stay were quite simple to train (spaniels are very intelligent after all!) - we taught them their names by blowing a whistle, calling a name and throwing that dog a puppy treat. (whistles are very useful for teaching recall too - pip it three times before food, and when on a walk your pup will associate the sound with a treat, and come running to see!) - probably structured training took 10 - 15 mins a couple of times a day. Ignoring the pup, is a good way to deter bad behaviours, such as nipping and jumping up... Oh and we tried to separate them for at least half an hour a day for some one to one training.
When we registered with our vets they invited us to puppy parties, and from there we took them puppy training.
Hope that helps! Good luck - and post lots of pictures please

and any problems and we'll all do our best to confuse you further.. err... I mean help
Pol