Hi,
In order to do these, please try as follows:
Log into administrator => Template Manager => JA Rave => Layouts => find line <blocks name=”middle” colwidth=”35″> and add this line: <blocks name=”middle” colwidth=”35″ fixheight=”1″>
Open file templatesja_ravecsstemplate.css:
1, I need to add a border-left on the right-column
#ja-right { background: url(../images/line.gif) repeat-y left top center; }
2, I need to add a border-right on the left column
#ja-inset1 { background: url(../images/line.gif) repeat-y right top center; }
image line.gif (1x1px) is border as you wish and this helps your layout not broken.