When inserting accounts into vTiger, you will need to insert a record into each of the following:

vtiger_account (accountid is based on crmid in crmentity table)

vtiger_accountbillads (accountaddressid matches vtiger_account.accountid)

vtiger_accountscf (accountaddressid matches vtiger_account.accountid)

vtiger_accountshipads (accountaddressid matches vtiger_account.accountid)

vtiger_crmentity     (crmid auto_increments)