current software :
1. Broadcom BTW 188.8.131.5200
2. Nokia PC Suite 6.83 [for Nokia 5300XpressMusic]
I have same problem with vista home premium 32 bit. Error :- bluetooth peripheral device
In Vista you must use a Windows XP SP2 standard listed device. Such as a CSR ( Cambridge Systems Radio) device.
I dont think hacking the c:\windows\inf\BT.inf in Windows Vista (tm) is possible because the various security programs stop "hacking" on the Vista internal files. Windows Update loads new versions over the patches.
I have an BT USB (csr chip set) and this detects, installs and links with PC Suite successfully v6.83-1 onward.
broadcomm 6 aka widcomm v6 will not be recognised by Nokia PC Suite in Vista.