I'm slosly going to try to upgrade my pc. I was reading a few guides and they said to first make sure the motherboard is capable of handling the upgrades. How do i see my current motherboard's limits? I'm not even sure what my current motherboard's name is. Here is some info, let me know if you need more.

SiSoftware Sandra

System
Host Name : HOME
User : Alex
Domain : HOME

Processor
Model : Intel(R) Pentium(R) 4 CPU 1.60GHz
Speed : 1.60GHz
Performance Rating : PR1755 (estimated)
Type : Standard
L2 On-board Cache : 256kB ECC Synchronous ATC (8-way sectored, 64 byte line size)
L3 On-board Cache : 256kB ECC Burst Write-Back

Mainboard
Bus(es) : X-Bus AGP PCI IMB USB i2c/SMBus
MP Support : 1 CPU(s)
MP APIC : Yes
System BIOS : Phoenix Technologies LTD 6.00
Mainboard : TriGem Computer, Inc. Dublin
Total Memory : 255MB SDRAM

Chipset 1
Model : Trigem Computer Inc 82845MP Brookdale Host-Hub Interface Bridge (B0-step)
Front Side Bus Speed : 4x 100MHz (400MHz data rate)
Total Memory : 256MB SDRAM
Memory Bus Speed : 1x 133MHz (133MHz data rate)

Video System
Monitor/Panel : Plug and Play Monitor
Adapter : NVIDIA RIVA TNT2 Model 64/Model 64 Pro
Imaging Device : Logitech QuickCam Express #4

Physical Storage Devices
Removable Drive : Floppy disk drive
Hard Disk : Maxtor 4D060H3
CD-ROM/DVD : SAMSUNG CD-R/RW SW-252S
CD-ROM/DVD : SAMSUNG DVD-ROM SD-616

Logical Storage Devices
1.44MB 3.5" (A:) : N/A
Hard Disk (C:) : 57.2GB (34.1GB, 59% Free) (NTFS)
CD-ROM/DVD (D:) : N/A
CD-ROM/DVD (E:) : N/A

Peripherals
Serial/Parallel Port(s) : 2 COM / 1 LPT
USB Controller/Hub : Intel(r) 82801BA/BAM USB Universal Host Controller - 2442
USB Controller/Hub : Intel(r) 82801BA/BAM USB Universal Host Controller - 2444
USB Controller/Hub : USB Root Hub
USB Controller/Hub : USB Root Hub
Keyboard : Standard 101/102-Key or Microsoft Natural PS/2 Keyboard
Mouse : PS/2 Compatible Mouse

MultiMedia Device(s)
Device : MPU-401 Compatible MIDI Device
Device : Standard Game Port
Device : SoundMAX Integrated Digital Audio

Communication Device(s)
Device : Conexant SoftK56 Modem(M)

Printers and Faxes
Model : Brother HL-1440 series

Operating System(s)
Windows System : Microsoft Windows XP/2002 Home (Win32 x86) 5.01.2600 (Service Pack 2)

Network Services
Network Drivers Enabled : Yes
Adapter : ADMtek AN983 10/100 PCI Adapter

Well it appears from the BIOS string that the mainboard is made by Trigem and the chipset is the 845MP. This most likely means that you are going to be limited to the old 400FSB CPU's, the Northwood core Celeron's and P4's which are very hard to find now I'm afraid

It's possible that the mainboard will support the 533FSB P4's as well, but I don't see the model number so I can't tell you which it is. Perhaps if you open the case and look inside with a flashlight to see if anything is stamped on the mainbaord.