Content Query Web Part - Custom ItemStyle.xsl to display image with hyperlink

Question

I don't have access to InfoPath or SharePoint Designer to edit the ItemStyle.xsl. So any solution suggested is preffered to be a manual change to ItemStyle.xsl
I use Content Query Web part (in the main site) to list all the Wikis created in the a sub-site. The idea is to link each wiki to its printable version stored elsewhere.
The wiki has custom column say "Link" that hold hyperlinks to the printable version.
I want to create a column in the content query web part that displays an image (same image for all wikis stored in the site Assets) but on clicking takes me to the printable version page.
I got the image displayed but the hyperlink takes me to the location where the image is stored and not to the printable version page.
<!--Variable declared to read the link from the column Link-->
<xsl:variable name="PDFLink">
<xsl:value-of select="@Link"/>
</xsl:variable>
<!-- Image to the hyperlink-->
<a href="{$PDFLink}">
<img src="../Images/Icon.jpg"/>
</a>

Answer 1

Hyperlink column is treated a little different. The field, by default, puts the URL and then the friendly name concatenated together, but separated by a comma. So I created two variables one that pulls everythng before the comma and the other after. Then
the html "a" tag looks like this:
<!--Variable declared to read the link from the column Link-->
<xsl:variable name="ActualLink" select="substring-before(@LinkColName,',')"/>
<xsl:variable name="FriendlyName" select="substring-after(@LinkColName,',')"/>
<!-- Image to the hyperlink-->
<a href="{$ActualLink}"><xsl:value-of select="$LinkColumnName"/>
<img src="/Images/Icon.jpg">
</a>