I saw a thread in the classic asp forums [ http://cutesoft.net/forums/ShowPost.aspx?PostID=173 ] 

and according to this thread you can remove the UpOneLevel button.

I tried to do the same in the insertimage.aspx page, but it just don´t have the code in it :

 <span class="btn"
           id="upbtn"

           onmouseover="Check(this,1)"

           onmouseout="Check(this,0)"

           style="BORDER: buttonface 1px solid"

           onclick="parent.frames['browse_Img'].Editor_upfolder('browse_Img')">

           <img src="upfolder_small.gif" alt="Go up one level">

</span>

Any tips?