Log in and just click on "my outfits". There you can add and edit outfits.
There are many ways to find outfits. You can use the search form, or just click on brands or items. You also can browse outfits of specific users.
Style points are points you get for your activity inside the community. You get points for upload outfits, writing comments and participating in contests. Click on "points" and you will see for what in specific you got points.
The fashionstyle browser is recommending a few outfits randomly. If you would like to see new outfits click on the round arrows.
Right now you should use upright format pictures. If you need to cut parts of or rotate the picture you can do that during the upload process.