To login into geochat you just need to enter your Username and Password in the login box at the home page.

If it is the first time you login into the website but you have been using geochat from your phone you have to click the I'm already using this on my phone box.

The First Web Sign In page will load.

There you will have to enter your phone number and the password that you had received by sms when you created your account from the phone.