so i noticed on some forums that they added some extra borders at the bottom of the categories or at least modified them, but i couldn't find the right class to use it with css codes, so yeah.. anyone have any ideas?
for example this one: http://y-university.forovenezuela.net/

I didn't get it, can you explain it more? 

yeah of course ^^
if you click on the link of the forum i posted up there and you scroll down to the forums and categories you can see an orange border down there. i don't even know if it's a border hah but yeah, it kinda looks like one
 here's how i imagined it  like this "border" that looks like the background. i don't know how to explain it more, i don't even get myself right now hahah

i know what you want ;)
if your forum version is phpbb2, please follow this tutorial carefully :D

first you need to edit your index_box
find this code first

Code:

<table class="forumline" width="100%" border="0" cellspacing="1" cellpadding="0">

then change the code above to this

Code:

<table class="forumline" id="borderA" width="100%" border="0" cellspacing="1" cellpadding="0">

save and publish.

and add this to your css

Code:

#borderA{border-bottom: 15px solid rgb(237, 131, 78);}

and you are done ;)

that worked, thank you :)
but if i wanted to use an image for the border, what should i do? i searched the internet but i never got my answers

never mind, i just used a div class and got exactly what i wanted (:
but the only question i have is, if it's possible to 'extend' the image over to the table part where the images for new and old are. here's my forum: http://testforum.forumotion.eu/ and you can see that the image doesn't go from one border to the other. i don't know how to explain it haha this part here:  see how it's not all the way to the end? this is what i also want to fill out

try to deleted margin-left:150px and width:300px ;)

delete this from where? i don't remember adding anything like that?

this can be locked c: