If you have all of the files for your website on your workstation it should not be a problem. You can use any ftp client to move them.
ftp address: upload.comcast.net
username: email username without the @comcast.net
password: email password
Not familiar with your software but most website authoring programs have an upload feature built in. It should use the same settings. Some web authoring programs might use ftp://upload.comcast.net instead of just upload.comcast.net. Make sure to upload all of the supporting folders and files created by your authoring software.
The url for your website will be http://home.comcast.net/~username/ For this url to work your main html file for your site must be named index.html or index.htm. These are the most common but a few others that work are in the server's directory directive list. If your main page is named something different like mywebpage.html it will not alias to the url for the username.
The server is case sensitive so if you find a link or image is not working check the case between the link and the image/file. For example 64impala.jpg is not the same file as 64 Impala.JPG.
You should be able to find instructions on GoDaddy to do the redirect. I know others have done it with comcast. Essentially your comcast pages run inside a frame on your GoDaddy domain. Do a search of the forum, since others have posted about how to do this.
