There is no Tm Dragon pulse in Gen V sorry you have got to breed for it. The new Tm 59 is Incinerate. You can use these pokemon to breed Dragon pulse onto Archeops: Swablu, Altaria, and Areodactyle(if you tm it too him in gen IV).
Good Special Archeops moveset
Earth-power: Coverage(If you want both Dragon-pulse and E-power you must use Areodactyle)