Thanks, Bakunin. I read through the stickies and the threads you recommended. I have a better understanding now of how all the different fixes (APARs, maintenance levels, technology levels, service packs, etc.) are related. It sounds like the interim fixes I'm looking to apply get rolled up into service packs and then technology levels to be distributed. I also read on IBM's site that interm fixes should not be applied without being instructed to do so by IBM documentation or support.
The problem I'm facing is that our internal auditors want our AIX systems "up to date." And it sounds like being "up to date" in the AIX world means applying the latest TL and SP. Is that correct? Sorry, I'm just trying to get a second opinion before I start installing the latest TL. And according to IBM's site here
IBM Support: Fix Central, the latest is TL3 or AIX 6.1.
Thanks