Thanks for the reply Sarnie.
I have a schedule which was downloaded from the VLM site but i have had to move days around because the club goes out every wednesday, sometimes these are shown as rest-days.
I also play football monday nights however this may have to get cut down to once a month.
I was thinking of increasing 10% each week for example like this,
week 1: 4 miles, 3 miles, 3 miles. (10 miles in total)
week 2: 5 ,3, 3 (11 miles)
week 3: 6, 3, 3 (12 miles)
week 12:, 20,4,4 (28 miles)
Hope this makes sense....