Import your sounds to the region bin (the area to the right of your screen if you can't see it, hit the <<<<<<<< arrows to the bottom right of the screen) by literally dragging and dropping. To preview your sounds hold down the alt key, and you can hear them from this bin by clicking the file with your mouse.
To use your VSTs with Pro Tools get yourself FXPansions VST - RTAS adaptor:
http://www.fxpansion.com/index.php?page=15&tab=43
Get yourself the free version of Structure (software sampler):
http://digidesign.com/index.cfm?navid=32&langid=51&itemid=5223
Load up your samples into this on an fresh instrument track, and change the track view mode to notes, and get sequencing!
Loads of help in the form of the accelerated tutorial videos here:
http://digidesign.com/index.cfm?navid=199&langid=51&itemid=27606
Forget about Fruity Loops!!! Welcome to Pro Tools.............
