AX 2009 Enterprise Portal - SharePoint Installation doubt

Hi again,

 I'm not sure which way to go for SharePoint installation, "Microsoft Dynamics AX 2009 Installation Guide" gives only two options:

1. Install Enterprise Portal and Role Centers on Windows SharePoint Services,
2. Install Enterprise Portal and Role Centers on Office SharePoint Server

 But I’m installing “Microsoft SharePoint Foundation 2010” which is listed as a supported platform (configured as stand-alone not as farm).

 Q1

Please confirm that Office SharePoint is the “right” route. AFAIK, Foundation it’s the “free” version of Office SharePoint option.

 Q2

Any heads-up with any patch? Given the fact that I’m running Win Server 2008 R2