A lot of users have reportedly faced problems installing Nokia PC Suite (specially the phone drivers) on Windows Vista due to Vista’s User Account Control. There are two approaches to this:

1) Goto Control panel, Search for UAC in the search box and turn off User Account Control altogether which isn’t recomended by Microsoft

2) Open Command Prompt in Administrator mode (Right click and choose Run as Administrator). Type “msiexec /i path to Nokia PC Suite.msi” (without the quotes)

The second method should install Nokia PC Suite just fine

Update: An official update to Nokia PC Suite version 6.83 release 14 has been released that supports Windows Vista 32-bit and 64-bit. Read more.