Tmobile Blackberry with O2 Contract Sim

vicx

Hi, I bought a Blackberry 8520 which is locked to the Tmobile network but I will be getting it unlocked from Tmobile on tuesday so I can use my O2 contract sim card with the phone (Simplicity for Blackberry).

The phone has the Tmobile 'web n walk' browser and I'm wondering once the phone is unlocked will my O2 sim card be able to connect to the internet via that browser.

I would prefer the blackberry browser but I'm unsure where I can download this from, I've searched Google and the Blackberry website but can't find the download.

Also is there a way to transfer app's from my laptop to the phone without the phone being connected to the internet? (I've downloaded the Blackberry Desktop Manager).

Thanks