resorting emails by date order after move/copy to sub folder ?

[voytek at sbt.net.au]

I have just used Squirrel web client to re organize some old emails to
subfolders. that worked OK, EXCEPT, all these emails are now in order that
I have moved them rather than original date,

is that some 'simple' way to re-sort them back by original date ?

thanks for any pointers, sorry for dumb question

Voytek