Roses do not cling to the wall themselves like some plants do. Therefore they will require tying in. On a wall it is a good idea to put up trellis or wires for this purpose. As the rose grows it should be encouraged to grow horizontally outward and upward. The lower stems straight out where possible and the taller ones, up and then outward. In this way new growth will be encouraged, as will more flowers.
On a pillar it is best, where possible to train the branches around it for the same reason as above.
Ramblers for trees will need to be tied to the trunk to begin with until the branches meet those of the tree, thereafter, the tree will act as a natural support.
To prevent all the flowers appearing at the top of a trellis, wall or fence, curve and arch the stems as much as possible, rather than keeping them straight. This will encourage side lateral growth which will encourage flowering lower down the plant. Attach stems to the trellis using loosely tied green string.