Megawizard pins do not match datasheets

I just ran the megawizard plug-in manager to create a interface with my DDR2SDRAM. The example design compiles, but the pins do not match the datasheet. I'm using the Cyclone II EP2C70.

The ram user guide also says this: IP Toolbench chooses the correct positions, if you are using an Altera board preset.

If i replace the pins assigned by the megawizard with the pins in the datasheet, it does not compile. I get this error:

Error: DDIO Node Error: Following DDIO Output nodes could not be placed by the Fitter

for 288 pins.

Anybody who knows what I'm doing wrong or how I can solve this?

Edit: Do I also have to change the location of the "Logic Array Blocks"?

What are these "LAB's", I can't find much information about what they do or how to use them.

Thanks

Steven