Hello Carl,
first of all you need an FTP-Application like "Filezilla" or equal. The very first step is to login and...:
1. Go to this directory:
.../htdocs/joomla/components/com_neorecruit/
2. Search for a folder named "files"
3. Right click on this folder an change the attributes from let´s say "744" to "777"
That´s it!

Now you should be able to upload your CV straight into this folder. Please leave a message if everything works fine.
Cheers from Germany,
Thorsten