It could, it's likely the drivers there might be older or less compatible than the ones that were provided to MS for inclusion with Win7.
I'd only use those (mostly the Vista drivers) in the case of something not working properly after Win7 was installed. The Marvell and Realtek drivers should have updated Win7 versions, so yeah, you'd want to grab those from the respective sites.
A caveate with the Marvell drivers. I'm not sure how they are with LAN drivers, but I know the Marvell storage drivers are often worse than the default Windows SATA/IDE drivers.
Regards,
SB