The 852 is an extremely old chipset and support for it ended a few years back. What we have is what we have and there is not anything newer. There is not any WCE 6.0 support in the 8.0 driver on that old of a chipset.
If you can backrev to a WCE that was active at the time the chipset was active, then you will have a chance of getting it going.
LVDS support is specific to the LVDS panel that you are using. You will need to create the platform.reg with the appropriate IEGD driver support items in it.
As for how to use it, have you read the Users Guide included in the documents folder? It contains a section on WCE use.
IEGD configuration and use is really designed for OEMs and those developing platforms, not end users per se. It needs a lot of intimate knowledge of the hardware in use as there are quite a few options that are specific to particular hardware and uses.
Hope this helps...