Ok, online upgrade takes me to SEF V 3.4.2. When I attempt to upgrade the VirtueMart extension I get 'Provided Download ID is not valid for the requested file: ext_joomsef3_virtuemart.zip. Please, make sure you are using valid Download ID for this product. ()'. There is no place to insert a valid Download ID if I had on in this extension, V2.0.1.
Where do I get the System - SEF Plugin as I don't think we have it.
Also, I can't find the 'Filter system variables' in the current or the new configuration. Do you mean 'Filter variable values?'? Is that the built in Joomla SEF plugin which I do have enabled?
Hope all these edits don't cause you problems, some forums send email on initial submit but not the edits.