Hopefully this will answer all Sig Questions

For All The Following Codes, Remove the dots (..)

Between <here> TEXT </here> is where you should insert the text you want

Picture
<imgsrc="enter adress here">

Scrolling
<marquee..> </marquee..>

URL
<url=http..> </url..>

Bold, Italics
<b..></b..>, <I..> </I..>

Center
<center..> </center..>

Size (standard is 2, bigger number makes bigger)
<size#..> </size..>

Color (if you choose red)
<color=red..> </color..>

Glow
<table style=filter:GLOW(color=)..></table..>

Drop Down Menu
<form><select name=select size="1"
style="background-color:COLORHERE;
font size:#pt; font-family:FONTHERE;
color:COLORHERE"
onchange="location.href=
(form.select.options[form.select.selectedIndex].value)">
<option value="URL">page link</option>
<option value="URL">page link</option>
<option value="URL">page link</option>
</select></form>


These Are The Ones I Know, If You Know Anymore Please Post Them And I Will Update