Display related sidebox category only

for example: I have 2 categories: Men and Women.
while customers in Men Category, the sidebox category shows only Men category and hide Women category.
if in Women category, then hide Men category..etc.

Only on the main page display all categories: Men and Women.

I have installed category dressing but it does not have the above function.

thanks in advance!

This would be better asked in the Categories Dressing support thread, but CD (to be accurate, CSS style rules added to CD) is capable of doing this display if it is combined with another mod which will insert a class tag in the body element. Smart Backgrounds from Plugins does this, and you can write a couple of rules for your stylesheet that use the generated class tag to hide the appropriate set of categories.

Note that I have not looked at Smart Backgrounds in some time, and it may have a core file that has been modified since then. Compare all the files in the mod package to their counterparts in your template or /template_default/ and transfer the alterations as required. I will look at that mod when I get time to see if updates are needed.