Changing the filename format for alerts

["McKim, Tim" <McKim () nsf org>]

I run snort on a Linux box and then take the /logs directory tar it and ftp
it to my Windows workstation to view the logs and the alert file. The
problem is that the file format under the IP address directory is
TCP:xxxx-xx. Windows chokes on the :. Is there an option to change this
format? If so, where?
 
Tim