Of course, upgrade is free. It can be done using JoomSEF administration.

I tried that (by going to upgrade), but the iJoomla plugin does not appear in the SEF extensions list - in fact only three appear (Glossary, Kunena and Search) despite having many more installed.

I tried downloading the file again via the account maintenance link however the file modification dates appear to be identical to those in the original plugin - has it not been updated yet?

Ruth

Clarification:
There is no new version. You problem was only JoomSEF settings (Ignore multiple sources). Sorry for confusion.

As per my email sent last week, the problem does not appear to be fixed - I have suggested what I think is wrong but not sure how to go about fixing it.

Exactly the same bug is in AceSEF. Denis Dulici is the author of both plugins. It looks like this bug will be hushed up. I reported that problem weeks ago in the AceSEF forum but didn't get help. I don't think I will buy another extension or whatever from this author, AceSEF or Artio (looks pretty much the same: coincidence?)

Yes, I agree (and had noticed the same author for both - it wouldn't suprise me if the code was obtained, repackaged as Artio and sold on) and suspect this is the reason behind Artio not offering any real support for the extensions they sell.

My client has decided to abandon Artio for that very reason, and I certainly won't be recommending them to any others given the many other issues I've reported and had virtually zero in the way of positive support. Given that this renders an iJoomla site completely unusable, the response has been absolutely awful (basically it's your problem, sort it out yourself)

Ruth