1) Get the clean CentOS 5.5 x64 from my VPS provider
2) Get YUM working (god knows why that ain't there by default on these VPSs)
3) Add the atomic YUM repository
4) Do a "yum update" to get the default installed apache and rest of CentOS 5.5 packages up2date, incl. atomic updated packages
5) Install ASL
6) Install ISPmanager to get new apache, proftpd, mail system etc etc installed (I assume this is autoinstalled via ISPmanager installer)
Voila, fully functional and secured system ready to add clients, right?

Or would point 5 and 6 be turned around (6 before 5)?