I don't know if the CC has auto-resume (for interrupted downloads) or not. At this point, you may not have a choice but to cancel the process and start again.
Until recently, I had a slow-as-frozen-molasses DSL line so I can definitely relate, friend. As others have mentioned, for users with slow download speed, it might be best to dl one section at a time.
If you log into your CW account, you can do this manually and use a download manager. This will save you if the download gets interrupted again.