Wait, patience is a virtue. It has spent this year making a good root system, next year it will begin to flower - none of these bigger plants are likely to do everything in the first year after planting, only annuals do that and your rose aims to be around for a good few years, so will take time to get going. Tie it is so that some of the branches are horizontal, this will also encourage flowering along those branches next season, prune according to any good rose book (it is different for climbers and ramblers, so besure what you have). Feed in Spring, sit back and wait, it will do its thing given enough time and care.