Making a wild guess that you are not a real saavy computer user, and just want to start working on your new PC. Windows has a migration tool that collects data off the old system, like preferences, email settings, etc. and moves them to the new machine, but doesn't do much for any non MS applications.
If you are in that grey area between moving just the settings, and transfering the whole drive contents, you will need either a nerd to help you, or some software with more than basic transfering smarts. Something I am guessing like the Migrate somebody else mentioned.