R182249 is for Vista 64 bit only; it won't work on the 32 bit OS. R180762 should load on Windows 7 32 bit, it worked fine for me on a D820. To be more precise try the unofficial driver set I listed here: [URL]
I have loaded Windows 7 Home Premium 32 bit on a Dell Latitude D630.  Is there a Dell QuickSet driver compatible with the D630 AND Windows 7 Home 32 bit?   I tried using the Service Tag, [ADMIN NOTE: Service Tag removed per privacy policy], to get the correct QuickSet driver, but the driver offered there, R182249, wouldn't load.  The Dell site also does not list Windows 7 in the pull down menu for the OS.  R182249 is listed  as the QuickSet driver for Vista 32 or 64 bits.   Any suggestions?   Thanks.
QuickSet Driver for a Latitude D630 with Windows 7 32 bit