Why did you remove the {images} variable? You could of just changed 1 path in the style edit menu for that style.
Goto AdminCP
goto Styles
Goto Modify
Click [fonts/colors/etc] on the techie style
scroll down to Image folder path and type in:
/forums/techimages/images
tada... saved your self hours of work. I know it works too becuase when I make a style I always use the variable for the path incase I want to release it some day.
Your going to have slower load times using the full (
http://) path and things wont cache right.