Aint it always the case.
Ok, down to biz. Do you know what program or utility was used to generate those files, and if not, usually the code that creates these will put some comments at the top of the file. Post those first few lines of the file here if you're not sure.
I feel the same way about diesel engines.
Fortunately, DH finally decided to un-bury the database management option in the control panel and it's now in the upper left corner under the "Toolbox". You can do pretty much anything you need to from the "MySQL Databases" option.
The hostname is going to be mysql.yourdomain.com (provided you're not trying to use a subdomain which I'm gonna assume not for now). With any luck no one has already used your database or user names on the server and it should be reasonably straightforward.
Also, bad luck notwithstanding, your database .sql dumps were created with the "phpmyadmin" web tool and should be relatively simple to import once you've created the databases.
Which leads to step 1:
Create the databases with the names in the files you have: weddingphotography_admin and weddingphotography. You will also need to have a username/password combination for each database - the same user can be assigned to both if your web application allows for it.
If you get past that, you can do the next bit and log into the "phpMyadmin" links for the respective databases to "import" the files. After that its just a matter of making things match up to those credentials in your web application (whatever that may be) and you're online.
See how ya make out with that part.