Flash help with errors

Hi I am new to flash and am trying to complete an assignment for uni. I have four errors and dont know how to rectify them. these are the errors:

Symbol=loading, layer=layer 1, frame=1, Line 1 Clip events are permitted only for movie clip instances

Symbol=loading, layer=layer 1, frame=1, Line 4 Clip events are permitted only for movie clip instances

Symbol=site, layer=script, frame=45, Line 70 ‘)’ expected

Symbol=site, layer=script, frame=45, Line 75 Unexpected ‘}’ encountered

Any help would be greatly appreciated :thumb: