hi.
ok, dont panic!
1. Connect the test LED to pin #4 of the 74LS14, the test LED should light, now push the UP button, the test LED should go dark.
2. Connect the test LED to pin #8 of the 74LS14, the test LED should light, now push the DOWN button, the test LED should go dark.
3. Connect the test LED to pin #10 of the 74LS14, the test LED should light, now push the CLEAR button, the test LED should go dark.
Let me know exactly what happens when you do this test.