Choosing the right package [XEN]

[imagodei]

Hi,

I want to install xen enabled kernel and I'm not sure which package to choose. There are literally dozens. For example:

ubuntu-xen-server
linux-headers-2.6.24-18-xen
linux-headers-2.6.24-19-xen
linux-headers-2.6.24-21-xen
linux-headers-2.6.24-22-xen
linux-headers-2.6.24-23-xen
linux-image-2.6.24-18-xen
linux-image-2.6.24-19-xen
linux-image-2.6.24-21-xen
linux-image-2.6.24-22-xen
linux-image-2.6.24-23-xen
...
...

and many others.

How do I choose the right one? How do I tell the difference?

TNX in advance!