I believe most people will be willing to hold your hand and walk you through things after you have shown you are willing to learn and help yourself.
Searching here will provide you many of the answers you seek.
However... I found the HTC Home Customizer to be very useful in changing the today page, and sets the Icons (it did on mine anyway) to blue. The Cube is a different story. You will have to search here to find the original Cube Icons, they are linked somewhere... Check the several Cube pages here for help on Icons and their placement.
Good Luck!
