Joomla - Backlinks - Articles - API Mod - Reg Mod - Docs Mod

Hello, I need 5 things done. Just tell me what numbers u can do and only bid what u can do. ***** This website is about the CONSTRUCTION INDUSTRY******* So if you have knowledge of this area a big plus. 1. Articles/forum posting I need good article posting software, the stuff I have seen out there is outdated junk, either provide me with the software, tell me what the good software is or post 50 articles for me cheap using my articles. Post great content about our website in construction related forums. Post in top forums in the industry. You will make many accounts per forum and post as new unique user each time. 2. Back-links; whats your rate per 10/100/1000 or whatever. 3. Integrate an API (Credit card pay page) module into my joomla site, only there is a trick I need done; People can only pay on the website if they get a code from one of my agents over the phone. I will need to be able to issue new codes as I need to for new agents. I would need 10 codes to start. 4. I have a registration page on my joomla site through a community builder module and it scrolls down forever until complete. I want the registration form to be a (no scroll down ) split into probably 3 pages where it validates each page and the user will then get a “next” button. **** I have crons and other specialty modules connected to the registration so they will need to stay in tack allowing the zip code, email address and crons to still parse and activate other rules set up by another programmer.****** 5. I have a place where registered users can go and download free documents through a DocMan module but it sucks so I would like my clients to hit the link to get to the file after they log in and it go to a page (I have the layout and thumbnail images for docts) where they will see a list of thumb images for the docs and a description like a little free e book store but it will just be one page and after the description there will be a download link. Thanks for reading, Barry