Like the title says, how do I get videos on to my N900?

PC Suite video manager doesn't detect my phone so it won't transfer videos.

I have videos that I ripped and converted myself to use with my 3rd gen iPod nano. Can I transfer those and if so, how? I also have the full sized videos I used to make my nano copies, do I use those to transfer?

Noob here so don't hate pleez.