Hi again.
In the end I tried all drivers and nothing worked, and mainly because the device manager does not detect any network adapter under windows xp installation. checked the bios and it is enabled in there.
Anyway, as the Lan driver can wait, I.ve installed mach3, did the setup, and tested the cnc. Same problem. Jerky steppers. Changed the kernel speed to 35000 and no difference.
Ran the Drivertest in mach 3 folder and it.s pulsing to slow, and that time line is all over the place.
Changed the computer driver in device manager from ACPI to Standard Pc and now the pc would keep restarting after the bios option. I could reintall everything and probably would work just fine for normal use, but not for cnc. At least I.ve tested the windows xp, and no difference compared to win7, in my case.

I.ve spoke with a friend that has a computer shop and he could find the suppliers for various old motherboards. This one that dazp1976 mentioned, GIGABYTE GA-G31M-S2L, 775, DDR2, PCI Express , goes here for apx 25-30Euro, and then an Intel celeron procesor, single or dual core, 2-3 euro a piece, might need the fan and everything but my friend will get and assamble all that. Also have the option of buying online from other people some old pcs, but the options are limited.

My question is what desktop pcs do you use guys? Rob, Clive, John?