Will PC2 6400/800MHz work with my Early 2008 MacBook (4,1)?

I am having a problem with upgrading new RAM. I received new RAM sticks and they will not work with my Early 2008 MacBook(4,1) with OS Lion. Here are the stick specs:
Make: Kingston
Product #: KTD-INSP6000C/2G
Speed: PC2-6400/800MHz
Pin count: 200
Other attributes:
SODIMM
DDR2-SDRAM
Unbuffered
Non-ECC
The tech specs from Apple (http://support.apple.com/kb/SP5) say that the bus speed is 800MHz and the how-to-guide to install RAM (http://support.apple.com/kb/ht1651#link3) says that PC2-6400/800MHz should work. However, that how-to-guide lumps 2006-2009 models together. I don't know if all of those models are compatible with PC2-6400 AND PC2-5300 or if that is just the range within the models (e.i. 2006 takes 667MHz while 2009 takes 800MHz). On the Kingston website it lists only Dell products as compatible with the product number I am thinking that is the problem. The how-to-guide does say that 667MHz is the recommended maximum speed for my MacBook model. I just don't know now if 800MHz works for my MacBook. The current RAM sticks I have are the stock PC2-5300/667MHz.
The two Kingston sticks together: Doesn't boot up
One Kingston stick (tried both) with an old stick: Does boot up and work
One Kingston stick (tried both) completely by itself: Doesn't boot up
Here is my frustration, I bought some Kingston sticks (KTA-MB800K2/4G) that are supposed to be compatible with Apple from a company on Amazon and they shipped me the other product number since it is also PC2-6400/800MHz and they are out of stock of the specific product number I ordered. They are saying that the problem is that my computer can't take PC2-6400/800MHz and that the different product number is irrelevant. So, do I need to order different RAM sticks that are a lower speed or should this company ship me the original product number that I ordered?
Thanks!

No. Your model requires:
Maximum Memory
6.0 GB (Actual) 4.0 GB (Apple)
Memory Slots
2 - 200-pin PC2-5300 (667MHz) DDR2 SO-DIMM

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