Wade the mulch is OK if not too thick to harbor insects and rodents. Mulch is one of those arguments that basically comes down to personnal preferences.
Scuba, when the guy says to cut back to 2-3 buds, he means chop off the top 2/3 of your vine before planting so you basically have a little stub left. By doing that, you leave just a few buds and the vine can put more energy into growing those few shoots. Yours are fine like they are in my opinion. What you need to be working on this year is developing strong roots and lots of root reserves. To do this, you let all the shoots grow this year to provide food through photosynthesis. That way, next year you make probably the hardest cuts to be made and cut your poor vine back severly to about a foot tall. That forces all those stored reserves into the few buds left and your vine will grow better for it next year. It gives larger trunk diameter. If you leave weak spindly trunks, the new growth will actually be bigger than the supporting trunk and hurt the vine in the long run. Just remember there are many ways to do everything and no real right way or wrong way. Choose what you are comfortable with and work with that. You only have a few vines, so who cares if they are different than some other persons.