Hey Meg,
I'm sorry to say this, but I'm not going to give you step by step instructions for a manual install. Why? Because this is a pain in the ass!
One hour you will be trying to install it and at the end you will wonder why it is not running.
* JFolder::create: Could not create directory
* Warning! Failed to move file.
This means that the guys running the server are not willing you to give you the necessary rights to write to it.
This also means - that you are unable to install any joomla extension.
Here is a long thread about your problem
forum.joomla.org/viewtopic.php?f=470&t=252418