menu bar style

hello everyone am not familiar with this forum..so need your help..

i gotta forum www.mobitechnician.com/forum
my problem is the menu bar ..its kind of irritating..

am looking codes and tutorial like the following

http://www.sutanaryan.com/Tutorials/fixed-menu-when-scrolling-page-with-CSS-and-jQuery/

some one post...already tried
https://help.forumotion.com/t133763-fixed-menu

isn't working..

Did you publish the modified templates?

i have published all the modified which are marked in red ..now they are in green(online)..but nothing is working..if you can help personally i will share you the credentials..

no responses after days and days over..