HD dish positions?

I intend to take the HD plunge in November. Assuming that Dish continues the deal for upgrading to DishHD, I would be looking to upgrade. I have read through most posts here and am a bit confused as to if I need to change my present dish configuration. I originally installed both my 110/119 Dish 500 and another Dish 500 pointed at 61.5 (originally for the Chicago locals). Reading the posts here I’m not clear on if this is all I need, or do I need to re-aim the 61.5 to 129?

Also, is there a manual posted somewhere for the ViP-622?


Thanks!