if I understand correctly, you have the 1099-R from the custodian that transfered the $10,000 to Vanguard, but you don't have the 1099-R from Vanguard that reflects the conversion from a TRAD to a ROTH IRA.
for the Vanguard 1099-R - did you look on their website? it should be there under statements and tax forms. (if you are set for electronic delivery, they would NOT have mailed it to you).
