It’s probably something really simple for you but I have spent hours thinking what’s wrong... :S
I read through this
http://ditto.modxcms.com/extenders/request.html and just went to: mysite.com/page.html?ditto_orderBy=tvname
then also gave a try: index.php?id=5&ditto_orderBy=klubi
But just nothing worked. Then I read this post
http://modxcms.com/forums/index.php/topic,13031.0.html and added &extenders=`request` to my Ditto call and tried also: page.html?ditto_sortBy=`field` and: page.html?&ditto_sortBy=`field`
But just Ditto doesn’t like me today

Also tried cached and uncached Ditto call.
I have MODx 1.0.3 and my Ditto call looks like this:
[[Ditto? &startID=`61` &summarize=`500` &dateFormat=`%e.%m` &tpl=`ditto_voistlus` &dateSource=`news_date` &depth=`0` &showInMenuOnly=`1` &extenders=`request`]]
It’s first time I try this so probably just doing something small silly mistake somewhere..