You can hit the "Details" button that's listed on the right side just above your comments. 
It resides on the "History:" bar and looks like this:

This way you can see that information, but it won't muck up your comments section.

Thank you so much for responding so promptly.  I was just discovering the Details icon as you were writing your reply, In fact, I immediately go  back online to the forum to say I think I found my own answer so I woudn't take people's time on helping me.  I'm so glad people like you take their precious time to read/reply to the forums.  Thank you again! Laura

This posting is from the old juice site -*sigh*- It'll allow you to always show the full history by default:

"To always show "More History" when editing a ticket in Altiris Helpdesk, do the following:

1. Turn off the "read-only" attribute on the file "C:\Program Files\Altiris\Helpdesk\AeXHD\templates\WorkItemEdit.ascx" and open it up in a text editor for editing.
2. In the LoadDataSources() subroutine, add the following line right before the call to BuildHistory():
3. DataStore("history_limited") = "false"

Save the file and you're done."

The credit for this goes to the original poster asbeer450