Ive misplaced the disc and need the driver to download to my computer
Depending upon which version of Windows you are using, there might already be a copy of the correct driver on your PC. If you have installed this software once before, then it may be worth a look.
Now, again, the version of Win is necessary, because the location may be slightly different. Start by looking in these folders:
C:\windows\system32\drivers ... or anything below this.
C:\Program Files ... and whatever the named folder is for that software
C:\Program Files\Common Files ... and below, especially
C:\Program Files\Common Files\System
C:\Documents and Settings\Username\Application Data ... and below
But the best way is if you remember the way the file name was spelled, to do a Search on your hard drive, using the first few characters of the filename of the driver.
For Example, to search for a Symantec driver, you would do a search on C:\sym*.* and see what comes up. Anything that begins with sym will be found, and you could look through those files for the driver.
For Columbia Telecommunications, it is going to be different, of course. And from what I saw using Google, that company is going to be difficult to find. If they are still in business, and you know the web site, clearly you should go there first, and look in their support area for drivers and downloads. That is the place to start.
The reason I didn't give you that first is that I was unable to find them on the web, but more time might have turned up better results.