Has your line been toned out? If not, it may be a lot longer than just a day as they will have to go to the CO and pull out any repeaters (signal boosters) they have installed as they do not work with DSL. What was supposed to be 2 weeks for me, turned into 2 months before they finally got it straight.
And like Sushi says, keep the Telephone line length short and use CAT 5 from a Gateway/Router to you computer. Most computer stores sell both if you did not get one with the kit.