in Version 1.5.x, you can place about 10-12 Categories maximum on the Top Menu Bar, if you choose rather short Cat-Titles, and
rework your left/right margin+padding Top Menu Settings in the Stylesheet.css File, in order to 'shrink' the Gap between the Cat-Titles and the left/right end gap. In addition, shrink the Menu Font Size, eventually change the Style to a generally smaller Font.
If you have more Top-Cat's, it will
break the CSS Frame, as I call this, and place, what has no longer room in the Top Menu Line, in a second (neutral looking) Line, below the first one, starting from left. The consequence of this will be, that the CSS Defined Frame, FOLLOWING, and suppost to stay first-left, in the second row, will be
displaced to the right, accordingly, with eventually still visible Cat-Links, or then just an empty visible space, and visibly hidden links.
in OC version 2, you have an Module to have multiple Top Menue Lines, as I recall from reading about...
I don't know of any such Top Menu Extension for v.1.5.x, you may check here for possible Options:
http://www.opencart.com/index.php?route ... 0Extension
http://www.opencart.com/index.php?route ... lti%20Line
http://www.opencart.com/index.php?route ... Top%20Menu
http://www.opencart.com/index.php?route ... Top%20Menu
Good Luck
Ernie
openshop.li/cart/
you could still
remove your other postings on the same theme, as long a s noone replies to...