Image directory as user option?

[smartkidbk5]

Well I know you cant put the code in the StyleVars, but is there anyway to do this?
I tried Replacement variables, but it didnt work:

{vb:stylevar imgdir_statusicon}

Replace with:

{vb:raw bbuserinfo.field25}

I also tried replacing all of them in the "Find and Replace in Templates (be careful!)", but only certain images worked, but some (for instance, thread icons) did not.

Is there any way for me to allow users to choose the directory with a profile field? Or maybe another way?

Thank you.