I will be crazy and the reason my router help pleas

****hello every body
my story it’s so long but I shortcut by tow words
i have mikrotik router v .9.27 and i want to forward some port and i don’t know how can do this
so plz if anybody knows lets me know
i read i can do by paste code in new terminal , its not work , i read about an easy way like this link but they used old virson
see it pleas :
http://www.emule.skynet.lt/faq/routeriai/mikrotik.htm

upgrade to 2.9.43