Build an Online Store

I have an existing site - [login to view URL] currently running on an osCommerce platform. The business is currently on hold for us and and I am looking for someone to help me with a few admin tasks for the website on a one time basis. The tasks needed are as follows 1- Reinstall newly purchased SSL cert and ensure all pages work correctly with no browser security errors 2- Reset admin login for user forum and purge forum of all spam 3- Remove all Spam from word press blog 4- Add a banner image on the homepage that says we are currently not taking orders but to feel free to browse around and sign up for our mailing list to stay in touch for future updates/specials 5- Fix newsletter sign up functionality. Currently, not functioning.