Merge lines if pattern matches in ksh

I have a file like this. Pls help me to solve this .
(I should look for only Message : 111 and need to print the start time to end time
Need to ignore other type of messages. Ex: if first message is 111 and second message is 000 or anything else then ignore the 2nd one and print start time of the first message. )
Example:
08-24-10 10:22:34,xxxMessage : 111
08-24-10 10:24:38,xxbMessage : 111
08-24-10 10:24:39,xxcMessage : 111
08-24-10 10:24:40,xxdMessage : 000
08-24-10 11:28:11,xxeMessage : 111
08-24-10 11:32:35,xxfMessage : 111
The output should be
08-24-10 10:22:34 to 08-24-10 10:24:39
08-24-10 11:28:11 to 08-24-10 11:32:35

Double post.

Continue: Merge lines together in unix