Ok, actually it is super simple:
1. Format a USB memory stick (at least 4GB, I'd guess) in NTFS
2. Open the MS Windows 8 Developer Preview .iso image with WinRAR
3. Select all files in WinRar and copy them to the USB memory stick
4. Either check if on your computer exists a directory /boot, or copy the one from WinRAR on your machine (the one on your USB memory stick might work fine as well) and cd into it
5. Execute a BOOTSECT /NT60
:
6. Unmount the USB memory stick, put it into the target machine and either configure the BIOS to boot from the stick or use a boot menu, depending on your BIOS
7. Have fun installing.
As mentioned before, most Windows 7 drivers from the myviliv page worked well for my S7.
:-)