Cannot help much without more information. What exactly are you entering in the Remote Site fields (leave out the username/password).
Is the information you're using identical to what your web host gave you? Which web host are you using?
Okay i have put in the fields:
And rhew maintain syncronization information is checked.
I test it and it says succesfull, but when i go to upload my whole site it tells me check host permissions error. Im using bravehost.com
Yes it is identical to what they gave me.
Check on your server if write permissions are enabled.