I have a 7100t. I just copied all my contacts to my computer from my other phone. They are now in .vcf format. How can I import these into my Blackberry please?

If your .vcf files are vcards, import the .vcf files into outlook contacts then synch BB with outlook

Nice! Thanks. One last question - is there a way to view all my contacts from my phone, on my PC like an explorer view so I can manage them / delete more easily?

Not that I know of. Best way is to edit them on Outlook and re-synch.

Hope that helps.