Yes, this is offtopic here. The main topic is about 100BTC transaction challenge, but not about finding for reused R values (as I understood you want to scan transactions for R, S, Z values in order to find the reused random number).
In order to close this discussion here I just want to give you the link to related topic where R reuse discussions were made: https://bitcointalk.org/index.php?topic=581411.0