Require help with coding in Psychtoolbox

Hi there, I urgently need help with coding in psychtoolbox. I have never had the experience of using psychtoolbox before. So far I have looked at the psych help demos and worked out some of the codes for the experiment and I need help with working out the rest of them. My experiment is pretty short and straightforward and it will be great if you can help me with working out the rest codes for my experiment.