I am sorry to say the thread http://www.picbasic.co.uk/forum/showthread.php?t=6444 got me even more confused and I ended up with just a bunch more questions. However, the good news is that it made me search for more information. I ended up looking at this thread: http://www.picbasic.co.uk/forum/showthread.php?t=3251 and on to Darrel Taylors Wesite: http://darreltaylor.com/DT_INTS-18/home.html

So for others New to this and struggling with concept of interrupts my advice would be to check these two links out. I found it well documented and easier to understand than a bunch of other stuff I had struggled with for several nights. It certainly helped me heaps. My personal thanks goes out to Darrel Taylor