802.11 n-draft compatible??

Hi all. This is my first post and im new to macs but i have recently ordered a macbook pro and i have roughly a week to go before its delivered. As i have time to spare i thought i should purchase a wireless modem for when it arrives so i can use the internet straight away. Im starting to think however ive purchased the wrong kind. Ive bought an n-draft modem, and without doing much research im now starting to panic about whether my macbook will be compatible with it. Ive read mixed reports all over the place that n-draft/pre-n is compatible with both b and g wireless but it all seems a bit blurred. I know im not going to get the full benefits as the macbook isnt pre-n, but will i still be able to connect to my wireless network and will it work as it should?? Has anyone got a pre-n/n-draft router and can vouch that its definately compitable?? Id like to know if its worth unpacking from the box! Thanks for your time and i appreciate any help.