Quote Originally Posted by scwebmaster
Are there any important files that I should not overwrite? For example, where is the database information stored? It would be bad if I overwrote this.
Your database stuff is stored in MYSQL which can usually be gotten to via PhpMyAdmin in your control panel.
If you can find it, you should definitely back it up.
Under no circumstances should you re-run the installation script, as that will more than likely overwrite your database.
The other thing you can do is rename your original database via PhpMyAdmin and start a new one from scratch if you have to.
Then you just dump the new database and rename the original one back to what it used to be.
(But that's complicated and most likely unnecessary)