htc tatto contact sync failed

i saved my contacts in my pc .. synced it to my pc "successfully" running windows 7... and then reset my tattoo to factory settings .. but then after that i cannot sync my contacts back from my pc to my phone ....

any suggestions please ... my phone is contact less and i dont want to insert 300 contacts manually ~~~~~

 

no particular error message ... just connects the pc to phone for sync .. and shows "syncronization failed" and just opens the report dialog giving "error = 0/1 contacts" .... while m not syncing my phone to pc .. but my pc to phone !! presently my phone is without any contacts