For vB3.7.x I have now got this modification to show on the mini statistics box of a users profile page.
For this you need to do a small template edit.
IN
memberinfo_block_ministats
FIND:
Code:
<dd>$prepared[posts]</dd>
BELOW ADD:
Code:
<!-- gender in mini stats -->
<if condition="$userinfo[fieldx]">
<dt class="shade">$vbphrase[gender]</dt>
<dd><img src="$stylevar[imgdir_misc]/$userinfo[fieldx].gif" alt="$userinfo[fieldx]" /></if></dd>
<!-- / gender in mini stats -->
Remember to change the x to your relative profile field number!!