Want to upgrade HD storage on White '09 MacBook

[Blocktorsk]

No concrete answers

http://eshop.macsales.com/shop/memory/Apple_MacBook_MacBook_Pro/Upgrade

It says 1TB will fit in unibody MacBook. White MacBook is actually 0.13 inches (0.33cm) higher than aluminum 13" MacBook (Pro)

But where is the space? On the top or the bottom of the whitey?
I ordered the Samsung 1Tb but have not received anything yet.
Hopefully its o.k.

Confused and a.bit.flakey.