Module development and code questions

I hope I'm in the right forums. I have webforms that I'm using to make forms for people to fill out personal information. I wanted to know if there was a way to secure them with ssl or some type of encryption. Any help would be most appreciated. Thanks.

Hi. I'm working with a module. i have defined a form like this

I'm a computer science major and I'm looking into learning/programming/installing drupal sites, themes, and modules. I have a few questions for anyone who has experience with freelance programming for drupal.

The following is a line from the Quiz module:
db_query("REPLACE {quiz_question_results} VALUES(%d, %d, '%s')", $_SESSION['quiz_'. $quiz->nid]['rid'], $former_question->nid, serialize($result));

Now, it worked fine until I added a field to the quiz_question_results table so (in hindsight not really understanding the nature of the REPLACE function) I added a ", 0" because I figured the function needed a placeholder for every field in the table. Then the code worked fine again as far as I can see.

Without the ", 0" I get the following error message:

I installed quiz module, and it seemed all to be working properly but... I don't find how to add questions !!. In edit page, you are available to change title, description, number of questions, dates for starting/finishing, summarizing issues, but... where and how must I assign questions? the tab "manage questions" only seems to be able to add new questions. Actually, it types at the end...: ">The following questions were found
No questions found." It's like some questions are included but aren't shown.
thank you.

Below I have posted code for my module. I have stripped some stuff out.

The file_save_upload function is where it gets stuck.

I'm sure it's a stupid error, but this is really bugging me. Any ideas?