good day.
seems u want to leanr about LS abit eh? Its not for the fieghnt of heart, i suggest using premade themes till u can establish ur self witht he program . The way to install themes is to download the zip it normally comes in and coopy the folder inside to ur themes dir. Then i fu want to change to that theme go finda program called lsts in ur litestep directory, its a simple theme changer. Dont worry about errors, litestep isnt perfect. If u dont like LS just go into LSTS and set explorer as ur shell.
There is ur crash course in LS