Help with Placement

I'm attempting to place something on my WP sidebar.. I chose the skyscraper ad and attempted to place it in my sidebar.php file in my public_html/wp-content/themes folder... but it isn't showing up. What snipet of code should I put it around (if anyone could prove a code example, that'd help a LOT!)

Will rep a good answer

 

wordpress themes sometimes like to mess with your ad blocks, what I like to do is put them in an iframe:

In your sidebar:

<center>
<iframe src="ads.html" height="620" width="140" frameborder="0" scrolling="no"> ads </iframe> 
</center>

Code (markup):

and in ads.html simply put in your adsense code. The added advantage of this being that you can quickly change your ads without messing around with your template. Of course you will have to play with the iframe's sizes and dimensions to get it just right!

 

Please direct your attention to www.uefafan.com

I have an ad under the first blog post -- all is fine, yes.

but what about the other ones! how do I add ads/take away the blank space there?