Htc Hero Stuck on "HTC" screen. Help Please
 

Hello, I have an HTC Hero flashed over to metro pcs. i did not do the flashing some one else did. my internet was not working so i decided to start messing with the recovery options. i really have no idea what i did. But now i can not boot the phone at all,it just hangs at the HTC screen. i can not even boot into recovery mode, the only thing i can do is get into the menu when you hold down the volume down button. but from their i can get to recovery mode. i am really a newb at this kind of thing and have no idea what to do.if some one can help me i would greatly appreciate it.