This paper describes Horizon, a European-funded project designed to increase employment opportunities for students with disabilities or learning difficulties. The project established a working cafe/restaurant (Cafe Horizon) in East London staffed by students. Part of the project involved the creation of multimedia units linked directly to Level 1 National Vocational Qualifications (NVQ) in Catering and Business Studies to support the training of the cafe workers. Cafe workers attend a college one day each week where they use multimedia materials to work toward their NVQ in Catering. One challenge of the project was to produce learning materials that could be configured for the individual learning problems of different cafe workers. To this end, a measure of differentiation was achieved in some learning units based on language level of the learner and subject level of the delivery. Learners worked individually or in small groups with specialist support workers who assisted users and participated in evaluation of the software. This paper describes how tasks are used within some of the multimedia applications to provide differential challenges for Cafe Horizon workers. The report also addresses the underlying pedagogy and use of task-based materials and the design of multimedia materials. (Contains 14 references.) (CR)