Many thanks for all the information and feedback from Accrington Web that's helped me put together a new map for Accrington. Here's a preview of it so if there's anything missing or not quite right then let me know.
http://www.mappingaccy.co.uk
It's based on where people like to go and the history of the place rather than the roads and car parks. One comment is that the pubs should be highlighted as they are meeting places and are used to give direction so I'll try and work them in.
Any other suggestions?