taking pictures of clothes

how to i take pics of clothes ive created and post them in the forum?????

Click the snapshot button or do Ctl + Shift + S

Then choose save to file and save it to your computer. You can edit the picture in PS and make an advertisement.

Before you take a screenshot, make sure you force the sun to its sunset position. Either press Control-Shift-N on your keyboard, or choose World > Force Sun > Sunset from the menus. Once you've forced the sun, turn your avatar in the appropriate direction and snap your pics.

The above will make your screenshots come out much better. People will be less likely to buy your clothes if they can't see them in a dark screenshot.

is there anywhere i can take a picture with just whit walls?

The easiest thing to do is to put up a temporary wall and floor to take your screenshots against. Set the textures on them to "blank," set the color to white, and make the texture "full bright." That will give you a solid color behind your avatar making it easy to select with the magic wand tool in your paint program if you want to cut it out and put stuff over a different background.