Regarding REconciliation GL account for Sundry creditors

Dear all,

Issue is like that,

I have one vendor with which i have assigned reco. account 28000. I have already passed postings.

Now i have changed in same vendor master reco. account 28010 from 28000.

Now the problem is that the entry already posted before changes it shows in 28000, i want to transfer it to 28010.

How can i change it..........?

Regards

Amit