The assignment link will be automatically removed after the deadline. So you've passed the deadline. No late report will be accepted due to any reason.
You should receive an email from the TA who did the grading right after the grades are posted at Bb. In that email, the TA will specify certain time frame (usually his/her office hours) to deal with all the grading errors. Contact that TA during that time frame (no grading error will be corrected after that time frame). There is no need to contact or cc any emails to the professor.
Contact the TA. If needed, you should bring your laptop to the TA's office hours.
It is possible that the Matlab on your laptop has a different version than 7.0 which is the current version at Teer. If you choose to do all the work on your notebook, it will be your responsibility to fix all the version-related problems.
No, unless you are asked by the TA to do so.
Never send your huge files as an attachment to the TAs' or the professor's email accounts, without obtaining their permissions first.