:rolleyes3 Windows Builtin ZIP... Download WINZIP, WINRAR or WINACE, many more options..
I too had that error when installing my first Template. What I found was this.. you have to make sure your Theme Name Folder is the exact same spelling as the install description in the templateDetails.xml .. I'm currently making 3 more very cool "Canadian Styled" Templates and source will be available as well on my site.
MY Example: My first theme is called " alternative_tech ", the folder to zip is called the same, and the following file (templateDetails.xml) has the same descripted name.. ..
============================MY tempateDetails.xml Notepad File
?xml version="1.0" encoding="iso-8859-1"?>
<mosinstall type="template">
<name>alternative_tech</name>
<creationDate>April 2004</creationDate>
<author>Trevor Schouwstra</author>
<copyright>Copyright 2004. Released under GNU Public License.</copyright>
<authorEmail>your-email@where</authorEmail>
<authorUrl>www.cruzers.homeip.net</authorUrl>
<version>MOS 1.0</version>
<description>Mambo 4.5 Template. Stable</description>
<files>
<filename>index.php</filename>
</files>
<images>
<filename>images/favicon.ico</filename>
</images>
<css>
<filename>css/template_css.css</filename>
</css>
</mosinstall>
==========================SAVED AS templateDetails.xml
Sooo.. here's my summary incase I lost you, or other readers..
I made a folder called " alternative_tech "
Inside the folder I have the following files & folders
- index.php
- templateDetails.xml
- FOLDER images/myimages.*
- FOLDER css/template_css.css
ZIP the primary folder (my case its "alternative_tech")
Upload alternative_tech.zip
Publish..
Hope this helps abit..:)