|"ok well i cant be bothered pulling my pc apart right now"|
It would take about 30 seconds to remove the side panel & get the info off the side of the power supply. You must be a very busy boy. You'll be even busier if the power supply blows & takes out the board, CPU, etc along with it.
"in a months time i am buying 2gb's more ram"
If you have the 32-bit version of Vista, all it can use is roughly 3GB. From the Asus website:
"When installing total memory of 4GB capacity or more, Windows 32-bit operation system may only recognize less than 3GB. Hence, a total installed memory of less than 3GB is recommended."
BTW, your graphics is the integrated Radeon X1250, not X1200.