welcome to the forum Lumos-Paronus

Yes, you need to place them in their appropraite folders, go to
program files> photoshop > presets
and there you'll find teo folers, style and photoshop actions, place them in there.
Then when you want to use them, with an image open in photoshop if you go to either the styles of actions pane there is a little arrow top right in that pane, click it and you'll get a dropdwon menu, on there is "load styles/actions" click that and then choose the style/action you want to load and you're there

by the way your sig image is too big, could you adjust it to the guidelines please
http://forum.weborum.com/index.php?showtopic=413&st=0thanks