Upgrading Joomla 1.0.12+Virtuemart 1.0.10

[coloradoz]

I'm having some issues upgrading an old site - I'm hoping that someone out there can help me out.

1. In reading the instructions for the upgrade - the method involves first upgrading Virutemart to 1.1x. I've downloaded the zip files for the package from http://dev.virtuemart.net/projects/virtuemart/files
2. I tried the 1.15 version, unzipped it in my local directory and tried to use the 1.0.12 component installer, but I get the following error
Upload component - Upload Failed
Unrecoverable error "PCLZIP_ERR_BAD_FORMAT (-10)"
3. I've looked up the error message and there doesn't really seem to be any suggestions out there to help. I'm suspecting that the 1.1 extension is incompatible with Joomla 1.0.12, but I can't really tell.

Can someone please point me in the right direction on this?

[dpacadmin]

First backup your 1.0.12 site files and database. Then upgrade your 1.0.12 Joomla site to 1.0.15, the latest version of 1.0.
Joomla_1.0.12_to_1.0.15-Stable-Patch_Package.zip

Then read this tutorial on migrating a 1.0 Virtuemart site to
Joomla 1.5
http://forum.joomla.org/viewtopic.php?f=430&t=419087

Use the manual installer to update your Virtuemart version;
http://dev.virtuemart.net/attachments/d ... .15.tar.gz
Follow the ReadMe instructions that come with it to upload the folders to the correct location on your site.

Once you have a Joomla 1.0.15/Viruemart 1.0.15 site you should be able to migrate to Joomla 1.5.

If the Virtuemart 1.0.15 update fails restore your site backup that you made before doing any changes.
I would also suggest doing the updates on a local install of your site as a test using a local server like Wampserver2 or Xamp before trying to update your live site.

[pishro]

Upload component - Upload Failed

@dpacadmin
hi.
Please advise on setting up your Joomla modules component and update the old version correctly.
Thank you for help