You can find the Representation Presentations here:
Presentation 1 - Language
Presentation 2 - The Typical
Presentation 3 - Institutions
Presentation 4 - Audience
Presentation 5 - Ideology
Audience Presentations are here:
Audience Theories
Active and Passive Audiences
Cultural Approaches to Audience
Targeting the Audience
And of course - Semiotics.
Good luck!