I need my new wordpress website checked for possible problems

General information for the website: sell software online
Num. of web pages/modules: it has 3 in it
Description of every page/module: i have a new wordpress web site , i want all features of the site checked that they are working , i want it used just as any customer would, these will include .
1. i have a 12 day free trial , i want the registration box completed as any customer would , you will need a name and a valid email address
2. i want the captcha checked and is working as it should.
3. after you have successfully registered for an account you will be asked to select a` "plan " this will be for the 12 day free trial or to pay the $30.00 a month for the subscription , THIS PAGE IS NOT WORKING
4. because the about plan / purchase page is not working i want all other features checked.
5.that the databases are ok
6. please do not reply unless you are conversant with wordpress and are sure you can do this work .
7. the web site is brand new , i want to market the program in the next 2 weeks , the web site is no good to me if any customers cannot get into the free trial or pay for the monthly subscription if they cannot get into these options if they are not working.
Description of requirements/features: to check that my web site is ready for customer use
Extra notes: the work must be finished in 3 days after it has been awarded