Prior to Herolab Online effort, updates came about monthly on the average, but in the last 2-3 years the updates were only for critical bug fixes and for movement toward content market. We haven't seen an update in a long time now (too lazy to go look), although there should be one once they get the Paizo synchronization worked out.

As for your question, I am afraid if it doesn't come over from Herolab, then you will have to manually enter it. Maybe someone else can give you an idea if you say exactly what steps you are taking and what the problem is, but I think you are going to have to manually enter it. If you can find an XML to CSV converter, you might be able to use the CSV import tool Farling created to import it though.

More like four years (February 2013), but you get the idea.

If the statblocks you see in Realm Works are the same as you see if you do File/Output Hero Statblock in Hero Lab, you should report whatever's wrong as a Hero Lab issue.