Do you mean you need to know the usual way of getting to a wordpress admin panel? If so,
example.com/wp-admin
username
password

If you don't know your username, password, or email you used to create the wordpress site, then that could be a problem. You'll need to contact the person who set it up. If you can't contact that person, you can download the database, change the email, then reload the database.

If you take a look at the image I posted, you can see that when I type www.gamerzville.com/wp-admin, I get the following message:

This theme is sponsored, all links in the footer should remain intact

Therefor I am unable to login.

That is screwy. You could try replace footer.php with the original one to restore the links that were changed. If that doesn't work should move that theme to another folder, so the default theme kicks in. Did you pay that person who edited your theme? In any case, from what you're saying that theme sounds like bad news to me.

Please believe me, you want to DELETE your theme if acting like this!! Using an FTP client go to wp-content/themes folder and delete your theme. You should re-upload the latest WordPress version and rewrite all files. You will not loose any of your post doing so.

If your theme is not allowing you to access wp-admin because of removing their sponsored links it is very possible that something else is injected as well. I develop for WordPress for years and saw some nasty things.

It might be pretty, but you need to delete that theme...

Hi guys, I've spent about 40+ hours working on my site, when it was finally done the last touch was edit the footer, now everything is locked, cant login to the admin page nothing. I've tried the suggested solution to delete the theme from the ftp and reupload wordpress but no luck, I'm still locked. Please can someone help me, I'm really lost and don't know what to do

You got locked out after editing the footer? And are still locked out even after deleting the theme? That's strange. What is the name of this nasty theme? You might need to delete the drop the database tables, then reinstall wordpress.

You can try Dan Riffle's suggestion. If not, you could save the database, reinstall wordpress than just add the posts section of the database to the new database installation.

T=Bird,
If you look at the first post she doesn't have the url right.