Ive managed to find this on the BBC and RHS also there is a video link at the end will help with pruning.
'Glen Ample' produces masses of large, tasty, deep red raspberries from July to August. The fruit freeze well so any excess can be used later. They also make excellent jam and jellies, as well being delicious fresh fruit for desserts. The canes are vigorous and spine-free, making picking the fruit trouble-free. As with all summer fruiting raspberries, the canes that have fruited should be cut back to ground level as soon as all the fruit has been picked. For the biggest crops, mulch around the plants each year with well-rotted manure and tie the canes onto horizontal support wires. Propogate by seed or cuttings in Summer or Winter. The Royal Horticultural Society have given it their prestigious Award of Garden Merit.
Plant raspberry canes in a row against the wire supports, allowing a distance of 60cm (24") between plants. Water well. Canes should be pruned to 15cm (6") above ground level immediately after planting to encourage more shoots to be produced.
Water summer fruiting raspberries well for the first year until plants are fully established. Loosely tie the stems in to their support wires as they grow. When berries begin to develop, place a net over the plants to protect the crop from birds. In autumn, prune the canes which have fruited over summer to ground level. Canes which have not fruited should be 'tied in' to their supports. Aim to have 6 to 8 fruiting canes per plant. Apply a mulch of well rotted manure or garden compost to the base of the canes in spring. This will help to retain moisture throughout the summer.
Floricane - produces fruit on second year wood.
How To Prune Raspberries (Video)
An instructional video by Stephen on how to prune raspberries. Includes advice on pruning Summer fruiting (floricane)
http://www.victoriananursery.co.uk/How_To_Prune_Raspberries_Video/