Fixing Drupal Problems

I have a Drupal website which is working very good and complete. But I still have small problems in it which I am looking for someone to fix it for [login to view URL] find him self can solve the mentioned problem, please bid on this project: 1- My website is a Engineering website, so I need users to be able to add Math Equations in their posts. 2- I need to create a registration process that contains 5 stages. Each stage have some questions. The questions are written in English and Arabic (I will provide the Arabic translation). The registration should look nice and well organized. The user can upload his profile picture which will be shown in the top of his account details page. I need to have the ability to export EXCEL file from this registration which will contain all the data entered by the users in horizontal table. I will provide a MS Word file with all the questions need to be in the registration page. I need to use module to make the registration page looks nicer and good arrangement. Which means also the user account information page should show all the information he entered in good and arranged shape. (CV attachment and Profile picture are required also).(Some of the entered information will be private). Also, I need to have a page on the website that list all users data so people will know all the users in this engineering community. 3- I need every user to have his own URL address, like: [login to view URL] which will be directed to his account information page. Conditions: 1- I only can give 10 days for this project 2- Maximum bid is 80$ 3- The provider should have very good English language (for easier communication) 4- The provider should work on his server and his SQL database and when I see the work is done good, he will transfer it to my server.