Open your WebCT course.
Click the Control Panel button in the
upper right corner of the screen. Note: The example shows
the Expanded Control Panel view.

Click Manage Students under Manage
Course.

Under Actions, Organize, select
Manage Columns, and then click Go.

Select columns to release by clicking in the
checkbox above the columns.

Under Actions, Release
columns, click the list arrow (drop-down menu), and
click Go.

This should make grades for assignments and quizzes completed visible to students.