can't log in.

Hi All,
I reinstalled xerte and it completely without errors and said that my install was successful. On a server, not on local host. But I am unable to log into the tool kit. I believe that I am using a valid password. Can anyone give me advice? I had backed up all the user-files from the previous installation and a number of other folders that I was supposed to saved. After I failed to enter the toolkitk I did upload the old library folder and some of other files/folders that I had saved. Please help.
Thank you..

Is the version on the new server different form the old? Which login are you talking about? User? Admin?

If newer, en admin login. Did you run upgrade.php?

yes, I did run update.php. is there a way for you to log in for me and set a valid password that I can use and then I would change to a new one? I have reinstalled xerte and I would like to access the learning objects that I previously created.. They were done as user Tester1.
Thanks