Hi Guiseppe

Now If I change something on an object in my working copy the icon next to it changes, but on every other working copy connected to the same Repository it does not change, it's correct?

The changed icon tells you, that the file has local changes. So yes, that shouldn't be seen by any other person. To put these changes on your SVN Repository, you need to do a "commit". For the other users to get your changes, they need to do an "update".

Using Native Source control object checked out from other guys were signed also in my working copy, now with SVN to get the same goal I've to "Get Lock" to the object and the other guys need to do the same in order to see if this object is going to be modified. Is it correct or other guys should see changes on objects locked or committed by me?

Every user should always work on her/his own working copy - there's no sense in using SVN if you share a working copy. But maybe I didn't get you right. About the "Get Lock": This locks one ore more objects, so no one but you can make a commit to that object. Others can still see your changes after you commited them and they did an "update".

I hope this helps - regards, Georg.