Accounts Receivable Account

Accounts Receivable Account

Hi,
When we began with Zoho books, all information was downloaded from Zoho invoices.
Opening balances were recorded in Zoho books as at Dec. 31, 2010.
 
 
For some reason the accounts receivables, as at Dec. 31, 2010 are not showing up on my balance sheet.
 
Any ideas?
 
Thank you.