you can read some more thread [General] Bitcoin Wallets - Which, what, why? (it seems you've known this in your other thread)
or if you prefer wiki style explanations, I posted in another thread awhile ago (quoted below)
if you still have questions or unclear on some info on these reading materials
then ask it here... we are a friendly community for newbies wanting to learn (but not for merit whiners who care only about ranking up for signature campaign)