Upgrade 8.5

I am using lotus domino release 7.0.2. Now i need to upgrade 8.5. Anybody give the document for upgrade 8.5 from 7.5. we are using AIX 5.3. and also give the command how can i check AIX patch leve and domino fix patch level in current version. Please help me. send document to my mail id cs.rajesh@hotmail.com

Subject: upgrade info below

Steps for upgrading to Notes/Domino 8 from versions 6.5 and 7 - link below

http://www-01.ibm.com/support/docview.wss?uid=swg21303385