Windows 7: No wireless on dell xpsm1530 but ethernet work

I/O Port 0x00000000-0x00000CF7 PCI bus
I/O Port 0x00000000-0x00000CF7 Direct memory access controller

I/O Port 0x000003C0-0x000003DF NVIDIA GeForce 8600M GT
I/O Port 0x000003C0-0x000003DF Mobile Intel(R) PM965/GM965/GL960 Express PCI Express Root Port - 2A01

IRQ 20 Intel(R) ICH8 Family USB2 Enhanced Host Controller - 2836
IRQ 20 Intel(R) ICH8 Family USB Universal Host Controller - 2830
IRQ 20 Intel(R) ICH8 Family USB Universal Host Controller - 2834

Memory Address 0xFFC00000-0xFFDFFFFF PCI bus
Memory Address 0xFFC00000-0xFFDFFFFF Motherboard resources

IRQ 21 Intel(R) ICH8 Family USB Universal Host Controller - 2835
IRQ 21 Intel(R) ICH8 Family USB Universal Host Controller - 2831
IRQ 21 High Definition Audio Controller

IRQ 22 Intel(R) ICH8 Family USB2 Enhanced Host Controller - 283A
IRQ 22 Intel(R) ICH8 Family USB Universal Host Controller - 2832

Memory Address 0xF2000000-0xF3FFFFFF NVIDIA GeForce 8600M GT
Memory Address 0xF2000000-0xF3FFFFFF Mobile Intel(R) PM965/GM965/GL960 Express PCI Express Root Port - 2A01

I/O Port 0x000010C0-0x000010DF System board
I/O Port 0x000010C0-0x000010DF Intel(R) ICH8 Family SMBus Controller - 283E

IRQ 16 Marvell Yukon 88E8040 PCI-E Fast Ethernet Controller
IRQ 16 NVIDIA GeForce 8600M GT
IRQ 16 Mobile Intel(R) PM965/GM965/GL960 Express PCI Express Root Port - 2A01
IRQ 16 Intel(R) ICH8 Family PCI Express Root Port 1 - 283F
IRQ 16 Ricoh 1394 OHCI Compliant Host Controller
IRQ 16 Intel(R) ICH8 Family PCI Express Root Port 5 - 2847

IRQ 17 Intel(R) 82801HEM/HBM SATA AHCI Controller
IRQ 17 Intel(R) ICH8 Family PCI Express Root Port 2 - 2841

Memory Address 0xE0000000-0xF7FFFFFF PCI bus
Memory Address 0xE0000000-0xF7FFFFFF NVIDIA GeForce 8600M GT
Memory Address 0xE0000000-0xF7FFFFFF Mobile Intel(R) PM965/GM965/GL960 Express PCI Express Root Port - 2A01

IRQ 18 Ricoh Memory Stick Controller
IRQ 18 SDA Standard Compliant SD Host Controller
IRQ 18 Ricoh SD/MMC Host Controller
IRQ 18 Ricoh xD-Picture Card Controller

Memory Address 0xA0000-0xBFFFF PCI bus
Memory Address 0xA0000-0xBFFFF NVIDIA GeForce 8600M GT
Memory Address 0xA0000-0xBFFFF Mobile Intel(R) PM965/GM965/GL960 Express PCI Express Root Port - 2A01

I/O Port 0x000003B0-0x000003BB NVIDIA GeForce 8600M GT
I/O Port 0x000003B0-0x000003BB Mobile Intel(R) PM965/GM965/GL960 Express PCI Express Root Port - 2A01

Memory Address 0xFED1C000-0xFED1FFFF PCI bus
Memory Address 0xFED1C000-0xFED1FFFF Intel(R) ICH8 Family USB2 Enhanced Host Controller - 2836

OS Name Microsoft Windows 7 Ultimate
Version 6.1.7100 Build 7100
Other OS Description Not Available
OS Manufacturer Microsoft Corporation

System Manufacturer Dell Inc.
System Model XPS M1530
System Type X86-based PC
Processor Intel(R) Core(TM)2 Duo CPU T8300 @ 2.40GHz, 2401 Mhz, 2 Core(s), 2 Logical Processor(s)
BIOS Version/Date Dell Inc. A12, 11/19/2008
SMBIOS Version 2.4
Windows Directory C:\Windows
System Directory C:\Windows\system32
Boot Device \Device\HarddiskVolume3
Locale United States
Hardware Abstraction Layer Version = "6.1.7100.0"

Time Zone Eastern Daylight Time
Installed Physical Memory (RAM) 4.00 GB
Total Physical Memory 3.50 GB
Available Physical Memory 2.31 GB
Total Virtual Memory 6.99 GB
Available Virtual Memory 5.26 GB
Page File Space 3.50 GB
Page File C:\pagefile.sys

You did check the switch on the right side of the computer?