Assuming there's no cable connecting them, I'd be surprised if your laptop and printer are
directly linked. It's far more likely that they're both using the wifi network created by your router. (i.e. your printer is 'linked' to your router and so is your laptop).
However I suppose that it's just possible that both your laptop and printer are bluetooth-enabled but there aren't that many printers with bluetooth (and probably even fewer laptops).
Assuming that you actually need to connect your Blackberry to your router, you need to invest £8.15 in this app:
http://uk.appitalism.com/app/blackberry/254843-priapps-mobile-print/
(That's because the Blackberry Curve doesn't have printing support built into it).
Then see the simple "Print Via Wi-Fi" instructions here:
http://www.ehow.co.uk/how_7719246_print-blackberry-curve.html