Dashlets not working

[darkmanta]

Hi everybody.
I upgraded from 6.1.3 to 6.2.2 and had an issue with tiny_mce, so I uploaded the entire /include/javascript/ folder from a full 6.2.2 tar.gz file.

Now everything is working well but Dashlets: I can't interact with them in any way. They display datas correctly but 'Add Dashlets' and all the Dashlets buttons are silent, do nothing.

Where should I look for the problem? Folder permissions are 777 just to be sure that it's not a read/write permission problem.

Thank you.

Update:
when i open the home, in FireBug i see this:

SUGAR.namespace is not a function
[Interrompi per questo errore] var menuHandle=moduleGroups[tabNum];if...Bars){if(this.allMenuBars[i].destroy)
style....93d&c=1 (riga 97)
SUGAR.util.doWhen is not a function
[Interrompi per questo errore] function() {
popup_...93d&c=1 (riga 243)
SUGAR.mySugar is undefined
[Interrompi per questo errore] SUGAR.mySugar.maxCount = 15;
index....n=index (riga 1129)
SUGAR.mySugar is undefined
[Interrompi per questo errore] YAHOO.util.Event.addListener(window, 'load', SUGAR.mySugar.init);
index....n=index (riga 1160)

When I click on a Dashlet button i receive
SUGAR.mySugar is undefined
[Interrompi per questo errore] YAHOO.util.Event.addListener(window, 'load', SUGAR.mySugar.init);

Any help will be highly appreciated

[darkmanta]

I solved by installing 6.2.2 from scratch and linking it to the old database, plus various copy/paste folders.

But now I have a new problem, happening not always, after a repair:

click-thru link output, in campaigns status, appears with Recipient Name and Recipient Email empty.

They were filled before a repair... why? How to make them appear again?