Filezilla FTP Program
To upload your website you can use an FTP (File Transfer Protocol) propgram. There are many available on the Internet both free and paid-for, if you search for FTP Program you will be shown a number of results.
There is an FTP program in the E-Biz Admin Control Panel that you can use to transfer files between your computer and your webspace.
The popular FTP program called FilezillaFTP is available for download here.
N.B. Manx Telecom takes no responsibility or liability resulting in the installation of this third party software.