Im afraid that despite the fact that she (may have) got the brand right for you, for the rest-- "saleswoman" tells the story.
You will need to tamp.
Best results will be with the group handle de-pressurised. (search this forum)
You will need fresh beans. (no more than 4 weeks from roasting)
You will need a good grinder and grind the beans immediately before making the coffee.
You will need much more practice than you thought would ever make a difference. (search again for coffee making and for milk foaming hints)
Plastic jugs dont work well for foaming milk, IMO, but a good pyrex or stainless jug, or even a large mug can do the job.
Welcome to the addiction. ;D