CMS Made Simple Forums

I am building a complex form (or perhaps set of forms) and wanted to know people think I should begin. The form is in 6 stages, questions at each stage dictate what the next stage is: Example: Question1) Do you live in 1) a house, 2) an apartment Question 2) If answered 1 -> Question about garden If...

I am very new to CMS Made Simple and am looking to either find or develop a module to allow my client to add new events, which can then be signed up for (upon sign-up reaching a certain number the event would become 'full'). Threre are a number of modules but none seem to be the full package so I th...