Buslogic to LSI on esx

Ok its written all over the internet but im gonna do it again :)

We have some machines on our esx env. that are still on buslogic configuration. We want to change this to LSI (recommended config by vm). To have a performance increase.
Enviroment (38 xp machines buslogic non persistent)
Steps to take
Shutdown vm
change diskmode
Download the vmx file
edit vmx file
add lsi scsi
upload the vmx file
boot with 2 scsi adapters
shutdown vm
edit vmx file

Ps dont download the latest version from lsilogic. The 1.28.3.0 does not work correctly in windows xp.
I now used 1.20.18.0 from the lsilogic website. This is working. On the esx server itself the version 1.21.26.0 is installed. Not figured out how to use this in the windows xp installation.