I've been asked to downgrade an Inspiron 3647 to Win7 64bit. The install went OK (thanks to the Unofficial Dell Win Reinstallation guide), but I'm missing a few drivers. Here are the hardware IDs. Can anyone point me to the right downloads?

Thanks in advance!

ethernet controller
PCI\VEN_10EC&DEV_8168&SUBSYS_06111028&REV_0C
PCI\VEN_10EC&DEV_8168&SUBSYS_06111028
PCI\VEN_10EC&DEV_8168&CC_020000
PCI\VEN_10EC&DEV_8168&CC_0200

Network Controller
PCI\VEN_168C&DEV_0036&SUBSYS_020C1028&REV_01
PCI\VEN_168C&DEV_0036&SUBSYS_020C1028
PCI\VEN_168C&DEV_0036&CC_028000
PCI\VEN_168C&DEV_0036&CC_0280

PCI Simple Communications Controller
PCI\VEN_8086&DEV_8C3A&SUBSYS_06111028&REV_04
PCI\VEN_8086&DEV_8C3A&SUBSYS_06111028
PCI\VEN_8086&DEV_8C3A&CC_078000
PCI\VEN_8086&DEV_8C3A&CC_0780

SM Bus Controller
PCI\VEN_8086&DEV_8C22&SUBSYS_06111028&REV_05
PCI\VEN_8086&DEV_8C22&SUBSYS_06111028
PCI\VEN_8086&DEV_8C22&CC_0C0500
PCI\VEN_8086&DEV_8C22&CC_0C05

Universal Serial Bus (USB) Controller
PCI\VEN_8086&DEV_8C31&SUBSYS_06111028&REV_05
PCI\VEN_8086&DEV_8C31&SUBSYS_06111028
PCI\VEN_8086&DEV_8C31&CC_0C0330
PCI\VEN_8086&DEV_8C31&CC_0C03

High Definition Audio Devices - there was a RealTec update, but it wasn't what i was looking for.
HDAUDIO\FUNC_01&VEN_8086&DEV_2807&SUBSYS_10280611&REV_1000
HDAUDIO\FUNC_01&VEN_8086&DEV_2807&SUBSYS_10280611