Urm, without knowing "where" I can only give you a generic "use css"

.left{
text-align:left;
}

.right{
text-align:right;
}

.center{
text-align:center;
}

.usually_looks_naff{
text-align:justify;
}

¥

Thanks you for replyy. I need to allign text in my post (in blog).

If you look in your skins css file you should find the following classes that effect posts :

.bPosts .bPost .bSmallHead .bTitle .bText .bSmallPrint[/list:u] ¥