I used Jquery and MonoX with no problems at all..
By default Jquery comes with MonoX but its a slim version..
If you want to upgrade it then I think you can find it in one of the template or header files.. may even be in webconfig.. been a while..
Cant remember exactly where but you can upgrade from the min library to the full library by simply uploading the lib you want and editing MonoX to use it.
I never had any problems with admin rights of jquery so I never noticed that..
I think that wrong because then it would be useless for many web developers because many of there users may not have access to the administrator accounts on the pcs they are using to browse their web pages..And most of what jquery is in client side java script..
So only permissions required to run it would be.. allow java script checkbox inside the users web browser..Granted some anal admins my disable this functionality from their users.
Hope this helps!