I realised that I am too techy ad a lot of people out there don't want a techy answer to a techy problem. So I am going to explain how to change the code given by the Ebay Partner Network and make it work in Blogger.
1. Get you code from Ebay Partner Network
Looks like this
<script language='JavaScript1.1'> document.write("<sc"+"ript language='JavaScript1.1' src='http://rover.ebay.com/ar/1/55956/1?campid=5335857286&toolid=55956&customid=&mpt=" + Math.floor(Math.random()*999999999999) + "&adtype=3&size=468x60&def=u7v&n3y=1&u7v=1&a3h=1&mpvc='></sc"+"ript>");</script><noscript> <a href='http://rover.ebay.com/rover/1/710-53481-19255-7/1?campid=5335857286&toolid=55956&customid=&def=u7v&n3y=1&u7v=1&a3h=1&mpvc='> <img border='0px' src='http://rover.ebay.com/ar/1/710-53481-19255-7/1?campid=5335857286&toolid=55956&customid=&mpt=[CACHEBUSTER]&adtype=1&size=468x60&def=u7v&n3y=1&u7v=1&a3h=1&mpvc=' alt='Click Here'> </a></noscript>
2 . Remove the <noscript> section, leaving
<script language='JavaScript1.1'> document.write("<sc"+"ript language='JavaScript1.1' src='http://rover.ebay.com/ar/1/55956/1?campid=5335857286&toolid=55956&customid=&mpt=" + Math.floor(Math.random()*999999999999) + "&adtype=3&size=468x60&def=u7v&n3y=1&u7v=1&a3h=1&mpvc='></sc"+"ript>");</script>
3. Copy the Hyperlink (highlighted below)
<script language='JavaScript1.1'> document.write("<sc"+"ript language='JavaScript1.1' src='http://rover.ebay.com/ar/1/55956/1?campid=5335857286&toolid=55956&customid=&mpt=" + Math.floor(Math.random()*999999999999) + "&adtype=3&size=468x60&def=u7v&n3y=1&u7v=1&a3h=1&mpvc='></sc"+"ript>");</script>
The link looks similar to
http://rover.ebay.com/ar/1/55956/1?campid=5335857286&toolid=55956&customid=&mpt=" + Math.floor(Math.random()*999999999999) + "&adtype=3&size=468x60&def=u7v&n3y=1&u7v=1&a3h=1&mpvc=
4. Paste the link into the PUT YOUR LINK HERE section below
<script language="JavaScript1.1">
document.write(unescape("%3Cscript src='PUT YOUR LINK HERE' type='text/javascript'%3E%3C/script%3E"));
</script>
and end up with something that looks like
<script language="JavaScript1.1">
document.write(unescape("%3Cscript src='http://rover.ebay.com/ar/1/55956/1?campid=5335857286&toolid=55956&customid=&mpt=" + Math.floor(Math.random()*999999999999) + "&adtype=3&size=468x60&def=u7v&n3y=1&u7v=1&a3h=1&mpvc=' type='text/javascript'%3E%3C/script%3E"));
</script>
Now paste the <noscript> section remove above after this new section, to leave something that looks like.
<script language="JavaScript1.1">
document.write(unescape("%3Cscript src='http://rover.ebay.com/ar/1/55956/1?campid=5335857286&toolid=55956&customid=&mpt=" + Math.floor(Math.random()*999999999999) + "&adtype=3&size=468x60&def=u7v&n3y=1&u7v=1&a3h=1&mpvc=' type='text/javascript'%3E%3C/script%3E"));
</script>
<noscript> <a href='http://rover.ebay.com/rover/1/710-53481-19255-7/1?campid=5335857286&toolid=55956&customid=&def=u7v&n3y=1&u7v=1&a3h=1&mpvc='> <img border='0px' src='http://rover.ebay.com/ar/1/710-53481-19255-7/1?campid=5335857286&toolid=55956&customid=&mpt=[CACHEBUSTER]&adtype=1&size=468x60&def=u7v&n3y=1&u7v=1&a3h=1&mpvc=' alt='Click Here'> </a></noscript>
Now just paste this into blogger and you should have Ebay Partner Network Ads on your blogger blog.
If you have any problems using this code, or need more help, just drop a comment and I will give you a helping hand.