[hab2ever]

try it
pawno code:

#define WELCOME 2011

if(strcmp(cmdtext, "/help", true) == 0)
{
ShowPlayerDialog(playerid,WELCOME,DIALOG_STYLE_MSG BOX,"Help Menu"," Your Message's Here ","OK","Cancel");
return 1;
}

and this list
if(!strcmp(cmdtext, "/drinks", true))
{
ShowPlayerDialog(playerid, 1, DIALOG_STYLE_LIST, "Help Menu List", " Your Messages Here", "Selcet", "Cancel");
return 1;
}