fileset missing

Hello

I need to install this fileset on a server with Aix 5.1

bos.perf.diag_tool
bos.perf.libperfstat

I go to the link

http://www14.software.ibm.com/webapp/set2/sas/f/genunix3/aixfixes.html

and i find this fileset but the last version that�s what i need the lastest one for both fileset

but when I send the preview to install the fileset, send me a notice that I need the oldest fileset for both fileset.

I come back to the link but the oldest its 5.1.0.10 in both fileset

My question its where I can find the 5.1.0.0 version for both fileset that I need to install first ??? because this one told me the preview to install first and then I can install the lastest for both fileset.

Thanks very much for your help

And thanks for my last question about microcode that�s was the solution connect for serial port and upload the microcode by diskette.

Normally, these filesets are on the installation media.