I am replying to myself ; )
Using Moodle 1.94 courses in 'My courses' block sort alphabetically.
To change it you have two choices:
1) patch
2) hack
1)
I felt unsure about applying the patch because I have never used one before and because I can't see exactly what happens when this occurs. Also I am on a network where IT scrutinise every bit of software installed. So I would have to download patch editing / viewing software to try and understand this approach better. I would then have to jump through hoops with my IT support guys to explain why I needed the software!
So I have followed the instructions here from Sharon:
2)
http://moodle.org/mod/forum/discuss.php?d=115793&parent=508050
...and 'My courses' now renders in the order that I set as administrator.

I still find it bizarre that in order to achieve this task I have had to resort to hacking PHP rather than interacting with the admin interface. Recent interesting discussions on Themes such as this one instigated by Ian Grivois have asked the question: why are there not more Moodle theme designers?
http://moodle.org/mod/forum/discuss.php?d=122021
Part of the issue is making Moodle accessible to XHTML/CSS designers.
So now I need to move onto increasing the width of the block above so that words don't wrap so untidily ; )
~thomas
Order of courses can be set to / appears as:

