GR/IR Clearing problem

We are trying to match some old open items for GR/IR from the year 2003. We have tried using the T-code f.13 to clear them off but the program just doesnt pick up the documents. There are no error messages. We have also tried using f-03 & f-30, but it is of no use either. The documents just dont get picked up in these programs. I am using FS10N and in that it is showing up as open. I am able to view these documents in FB03 as open.

The documents are showing up as open in the GL account, but they are not getting cleared anyway.

Few more details :

1st Document Type is 'WE' and the Transaction details are :

Dr. Cost - $177

Cr. GR/IR Account $177

We are trying to clear this with 2nd Document Type 'WE' and the transaction details are :

Dr. GR/IR Account - $177

Cr. Cost - $177

Both the transactions have been passed using T-code MIGO in the year 2003. We are trying to clear them off with eachother and netting them off to zero.

Need help in resolving this problem urgently.