This is ICH7 controller for SATA MB, not supported, try another build.
http://www.mini-itx.com/reviews/atoms/?page=6
I have a ZOTAC G41-ITX [G41ITX-A-E] and got it to work rather easily. G41 chipset is ICH7. I installed the package 2668++ (more hardware) initially. Then I created a new USB drive with build 3202 and booted it on the SynoPC. It boot to waiting for kernel or something like that. After that I used the Synology Assistant and searched my NAS. It was discovered and when I right clicked it, I had an option to upgrade it. I used the .PAT provided in the build 3202.
The only glitch it has it when I reboot, there's an error in the log saying that "auto update failed". I searched a bit for that error but found nothing. Since it works, I just left it like this.
Hope this helps.