How to update GL Acc bal in non leading ledger?

Hi,

I have gone through the forum, and came to know that with the help of FB01L tocde we can post directly in non leading ledger with upload accounts concept.

Is there any other way to do it. Acutally we have created non leading ledger newly for US GAAP. so we need to update gl balances for US GAAP ledger from Jan 1st 2013 onwards.

Since we created newly, earlier balance wont be passed automatically throgh leading ledger.

So which is the best way?

Thanks in advance

Vishnu