Welcome to x10 ksn24! To upload your site, you can use an FTP program, or you can upload your site via cPanel. Wen you upload your site via FTP, you have to tell the client such as Internet Explorer or another program your website address (for most clients it's just your domain name, for Internet Explorer it's
ftp://*yoursitehere*). Once logged in using your account, remove the index.html file from the public_html folder and upload your website. cPanel is just as easy but might help save some time. With cPanel, you can upload files such as ZIP files and you can have the server extract the site for you rather than having to upload each file one by one. Simply go to the file manager in cPanel, press OK in the prompt that appears, and you're immediately in your public_html folder. Upload your site there by uploading the files one by one, or upload your ZIP file. Once the ZIP file is uploaded, click the "Extract" button in cPanel and press OK on the prompt to extract the site. Make sure the site works by visiting your domain and then delete the ZIP file.
Lastly, always delete the index.html file that is in your account before you upload stuff. Once you upload your site of course, don't delete any index.html files.