The best time to take cuttings or to put in new fruit bushes is now - in autumn, while the soil is still warm. Bearing in mind that they'll take about 3 years to get to a good fruiting size, it might be a good idea to take some cuttings now.
Out of interest, saddad, I thought that Blackcurrant Reversion Virus didn't affect redcurrants and whitecurrants so much, if at all?