Do you have one of the vip receivers (622, 722, or 222)? Are you sure you didn't sign up for an 18 month lease, since you said "over a year since I signed up"; if I''m reading the posts correctly, it seems like the subs having trouble trying to get this package only are not able to if they are still under the original lease (18 month) committment.
I'm going to try & get this HD only pack (I'd downgrade from dvr advantage 200 and HD), just waiting for the last two episodes of Monk to air. I hope by then the cs reps will not be completely clueless about itYou might try csr roulette and/or ask for a supervisor.
I have a 622. No contract - that was one of the specific things that made me choose Dish over Direct last year was that I could pay the $49 installation fee and avoid any commitment. I think the subs that have gotten the package must either own their equipment, or just got lucky with a CSR.
One option I was considering was calling and downgrading to Dish Family, then calling back and trying to 'upgrade' to HD Only. I'm calling my cable company first, though.