Hello there i also have problem with multimedia audio controller, hence im here

I don't have CD to install and i don't know how to open my computer up. (Pathetic yes?) Here's my computer info from Belarc
Operating System
Windows XP Professional Service Pack 2 (build 2600)
System Model
Intel Corporation
Processor a
2.80 gigahertz Intel Pentium 4
16 kilobyte primary memory cache
1024 kilobyte secondary memory cache
Main Circuit Board b
Board: Intel Corporation D865PERL AAC27648-209
Serial Number: AZRL41002760
Bus Clock: 200 megahertz
BIOS: Intel Corp. RL86510A.86A.0071.P13.0401221036 01/22/2004
Drives
119.99 Gigabytes Usable Hard Drive Capacity
52.65 Gigabytes Hard Drive Free Space
HG1300D DGG374P SCSI CdRom Device [CD-ROM drive]
JLMS XJ-HD166S [CD-ROM drive]
PIONEER DVD-RW DVR-107D [CD-ROM drive]
3.5" format removeable media [Floppy drive]
WDC WD1200JB-00FUA0 [Hard drive] (120.03 GB) -- drive 0
Memory Modules c,d
512 Megabytes Installed Memory
Slot 'J5G1' has 256 MB
Slot 'J5G2' is Empty
Slot 'J5H1' has 256 MB
Slot 'J5H2' is Empty
Local Drive Volumes
c: (FAT32 on drive 0) 31.44 GB 11.02 GB free
d: (NTFS on drive 0) 57.68 GB 21.07 GB free
e: (FAT32 on drive 0) 30.88 GB 20.55 GB free
Network Drives
None detected
Controllers
Standard floppy disk controller
Intel(R) 82801EB Ultra ATA Storage Controllers (2x)
Primary IDE Channel [Controller] (2x)
Secondary IDE Channel [Controller] (2x)
Display
NVIDIA GeForce FX 5200 [Display adapter]
LGE T710BH [Monitor] (15.7"vis, February 2004)
Bus Adapters
SCSI/RAID Host Controller
Intel(R) 82801EB USB Universal Host Controller - 24D2
Intel(R) 82801EB USB Universal Host Controller - 24D4
Intel(R) 82801EB USB Universal Host Controller - 24D7
Intel(R) 82801EB USB Universal Host Controller - 24DE
Standard Enhanced PCI to USB Host Controller
Multimedia
None detected
Communications
Motorola USB Modem
NetComm V.92 Desktop Modem
Hamachi Network Interface
Other Devices
Standard 101/102-Key or Microsoft Natural PS/2 Keyboard
Microsoft PS/2 Mouse
USB Root Hub (5x)
pcouffin device for 32 bits systems
Hoping that someone can help me soon, because im going insane without sound!
Also i didn't reformat my computer, i just deleted the wrong program

I clicked on the soundMAX icon in add and remove prgrams, then i realised what i was doing and clicked cancel about 30 seconds after. No sound
