adding floating image

Just need some help with this please anyone.
I would like to add a transparent image (gif/png) to the top righthand corner of my template page (see attached). The image should float above the background but behind all the foreground elements such as text and menus.
See two files attached. Any help would be most appreciated. Thanks

Open css/template_css.php (ote this is a .php file) and aftre this:

body {
color:<?php echo $bodyText; ?>;
<?php if($bgStyle) { ?>
background: url(<?php echo $template_path; ?>/images/bg<?php echo $bgStyle; ?>.jpg) <?php if($bgStyle>=5) { echo "top center no-"; } ?>repeat;
<?php }else{ ?>
background: <?php echo $solidBg; ?>
<?php } ?>
}

add override:

body {
background-color:#<coror of background as in your picture>;
background-image:url('<ulr of image with graphic with transparent background>');
background-repeat: no-repeat;
background-position: center top;
background-attachment: fixed;
}

if graphic will move with content omit this line: background-attachment: fixed;

This caused loss of all backgound and did not bring in the transparent image.
Can you help please?
Thanks

Correction:
Backgound colour (#151515) is okay but no image.
The body text colour changed to background colour #151515.

---OLD
body {
color:<?php echo $bodyText; ?>;
<?php if($bgStyle) { ?>
background: url(<?php echo $template_path; ?>/images/bg<?php echo $bgStyle; ?>.jpg) <?php if($bgStyle>=5) { echo "top center no-"; } ?>repeat;
<?php }else{ ?>
background: <?php echo $solidBg; ?>
<?php } ?>
}

---NEW
//body {
//background-color:#151515;
//background-image:url(../images/filigree-bg2.png);
//background-repeat: no-repeat;
//background-position: center top;
//background-attachment: fixed;
//}

Probably image link in background-image:url(../images/filigree-bg2.png); is bad.

try:

/images/filigree-bg2.png
images/filigree-bg2.png

if you have sub folder for then you will maybe need to add sub folder name. Anyway if you put absolute path for image that will certainly work.

Thanks that worked well. Can I have it move with the page content? And move it across more?
Thanks