SQL RowVersion

I've recently migrated data from MS Access to SQL Server 2000, after migrating the data (around about 5 million), I added a column with a data type of TimeStamp, I wanted to make it RowVerion but my SQL Server 2000 beta version doesn't have it. Anyway, my question is, is there a way of populating the column with unique values so that I'll be able to maintain concurreny?

Thanks heaps!

Don't worry about it, now I know that it gets populated automatically!...( i was looking at the records through the Enterprise Manager and didn't see any data for the TimeStamp!), then I used Query Analzer and they're there!)