sounds like you forgot to wipe before you flashed. always wipe/factory restore, wipe cache, and wipe dalvix cache before flashing. wipe and reflash stock or custom rom...also, the htc sync information as well as a couple other things were stored on the original memory card, your phone will rebuild the folders but not the sync. if you formatted you deleted them. oops! I will look and see if i can copy in what you need...
http://www.htc.com/us/support/evo-sprint/downloads/
...this should be all you need.