I have tried ubuntu using wubi and run 1st time but second time hang, does wubi not run on win xp 64 ?

Wubi is either loved or hated. Personally I didn't care for it but many good people have reported it as wonderful.

It has some limits to how it guesses it should boot it my complaint. Could be some issues with your computer, some bios settings too fast or off a bit. Memory issues may cause it or drivers. Any sort of thing could cause it like those in a normal install might fail.

If you have a newish system consider a virtual machine instead. If you need a native install then consider a dual boot. Be sure to uninstall what you have from add and remove programs in xp.

Is your tag line a sort of a sales pitch?

Is your suse installation a wubi installation?
I myself didn't have a good experience with wubi.

try wubi of ubuntu 64 bit

Wubi (Xubuntu flavor) runs fine on my Win7 64 bit machine.

I may be wrong but I don't think it matters. I just did a wubi install of 12.04 64bit on an old XP 32-bit machine.