I need to create Four Drupal 7.0 forms

I need to create four Drupal 7.0 forms they help teacher to create online courses (3 types of course 1-public course 2-webinar 3-private course) you can check the attached files. for (public course and webinar) 1. first form contain: 1.1 Course type a drop down list (public course or private course or webinar) 1.2 title a text 1.3 subject a drop down list (come from subject list filled in profile) 1.4 grade a drop down list 1.5 Description a text 1.6 then user press next to go to Second form. 2. Second form contain: 2.1 sessions (total number of sessions) 2.2 sessions per week 2.3 depend on number of sessions per week at 2.2 it will draw the exact number of rows each row represent a session and contain (session day as drop down list and time from to which mean start and end time for that session ) 2.4 Course start-date it will be a calendar to select a start-date but it MUST check that there is no conflict between this course sessions and other courses sessions for the same teacher 2.5 Hint as message and teacher can close it 2.6 Then user press next to go to Third form or can go back for first form. 3. Third form: 3.1 it contain number of sessions of that course for each session we have: 3.1.1 date, from, to, duration (all of them are auto-filled from the previous form) 3.1.2 Session topic as text-area 3.2 Total number of hours (calculate auto) 3.3 Then user press next to go to forth form or can go back for second form. 4. Forth form: 4.1 Max number of student. (at public course only, but it will be removed at the case of webinar) 4.2 Hourly cost per student. 4.3 Total cost of course (auto-filled) it is = Hourly cost * total number of hours 4.4 Final balance (total cost after deduct site commission which has to be dynamic number configured from the admin module) 4.5 Min payment 4.6 Choose course pic 4.7 Teacher press next to finish add course and waiting admin approval and goto view course or can go back for third form. For (Private course): 1. first form the same as first form at public course 2. Second form the same as second form at public course 3. Third form the same as Third form at public course 4. Forth form: 4.1 Choose Students (all student enrolled at this teacher's courses) 4.2 Hourly cost per student. (As public course) 4.3 Total cost of course (auto-filled) it is = Hourly cost * total number of hours (As public course) 4.4 Final balance (total cost after deduct site commission which has to be dynamic number configured from the admin module) (As public course) 4.5 Min payment (As public course) 4.6 Choose course pic (As public course) 4.7 Teacher press next to finish add course and waiting admin approval and goto view course or can go back for third form. (As public course)