I tried changing the values for the top and bottom content margins of the sys tray and the taskbar background, but it didn't work. I also tried what Shmoopy said and accessed the Font presets via the explorer tree, but I could not change the font face from arial to another. In fact when I clicked on font face there was no box in the value field for me to select a different font. Nevertheless, thank you for your help.
Ps. This is the shareware version of skinstudio build 619, if it makes any difference.