I was able to get this working with recent downloads from Dell and Intel support sites. The simplest to get working was from Dell, since the Vista drivers only contained one inf iile. I downloaded "NIC_DRVR_WIN_R234070.EXE" from here:
http://support.dell.com/support/downloads/download.aspx?c=us&l=en&s=gen&releaseid=R234070&SystemID=PLX_760&servicetag=&os=WLH&osl=en&deviceid=11814&devlib=0&typecnt=0&vercnt=5&catid=-1&impid=-1&formatcnt=1&libid=5&typeid=-1&dateid=-1&formatid=-1&fileid=336869
I then extracted the driver archive to a covenient folder. In that folder there was a folder named "payload". The files in this folder are the Vista 32 bit drivers that will get the SRD to work. I just erased the files in my SRD location and then copied the files back from the "payload" location. The thing to keep in mind is that the resultant folder structure can be anything that helps you keep it all organized and recognizable. As long as the files needed are available, you can get whatever folder stucture you prefer to work.
When using the SRD I created I did have to browse for the inf file in order to load the NIC driver. Since I used the Dell download, there was only one inf file in the resultant folder which made it easy to find. The Intel download had many inf files to chose from, so I would avoid that download.
