above I have managed to modify a code for an 8led chaser in one direction only with speed control via a pot. which for my first attempt I am quite proud. but I have only used 8 outputs and I have designed a circuit for a single fading led which I would like to incorporate into the program but I don't know how. can anyone help. link to main program is above.
Welcome! How do you want the single fading led to function in this 8-led chaser?
The simple minded way is here:-
http://www.thebox.myzen.co.uk/Tutorial/Merging_Code.html
for a single fading led which I would like to incorporate into the program but I don't know how
This is more complex and you will have to use the concept of a state machine.
One example is given in the blink without delay example in the IDE.
An other is show here:-
http://www.thebox.myzen.co.uk/Tutorial/State_Machine.html
Forget using delay() to time the LEDs.
Start with, as suggested, Blink Without Delay in the examples that came with the Arduino IDE, and read here:
http://forum.arduino.cc/index.php?topic=223286.0
link to main program is above.
Dumping your code in the rubbish bin is not the way to make it available to us to read. There is a link below, Additional options..., that lets you attach your code here.