I am interested in buying Audit Software 9 to be used for external audit - system audit, audit of operations and financial audit. Can you offer some help?
The product you're looking for is called ACL 9, and it's available from its official website. The software does exactly what you've mentioned. It's used in auditing and risk information. However, the only way to obtain a buying price or any other information related to payment and purchasing is through the Find a Partner page. Access the page and click the one which corresponds to your area. He should give you all the details you need in terms of purchasing and installation.
Find a partner page: http://www.acl.com/about-acl/partners/find-a-partner/