Firefox Frameset look and behavior Problem

[Giggle Girl]

Hello there, :)
I need a frameset that will have the same look and behavior in Firefox
1.5+ as it does in IE 6+. Here is a URL for it:

http://66.51.164.93/fs/default.htm

In IE, the "seam" between the three frames is blue, 4 or 5 pixels
wide, and -- most importantly! -- draggable! It is great -- in IE,
that is. Is it possible to have this same look and behavior in
Firefox?

Here is the code for the frameset:

<frameset name="frameset_ 0" id="frameset_0 " rows="309,*"
framespacing="3 " border="0" frameborder="1" bordercolor="#6 889BF"><!--
old #879CBF, new #6889BF -->

<frameset name="frameset_ 1" id="frameset_1 " cols="25%,75%"
framespacing="3 " border="0" frameborder="1" bordercolor="#6 889BF">
<frame name="frame_1" id="frame_1" SRC="./_TEMP_frame.htm "
border="0" scrolling="no" resize frameborder="0" >
<frame name="frame_2" id="frame_2" SRC="./_TEMP_frame.htm "
border="0" scrolling="no" resize frameborder="0" >
</frameset>

<frame name="frame_2" id="frame_2" SRC="./_TEMP_frame.htm " border="0"
scrolling="no" resize frameborder="0" >

</frameset>

Thanks for you help,
Giggle Girl