Module development and code questions

I've created a custom node type and am trying to create a form for it.

I'm creating a form where the user can click a button and elements (a text box and a check box) are added to the form. They can then submit a variable number of items in one form submission. I figured that if I used the right format for the field names (edit[name]) then the data would just show up in the node magically. Unfortunatly, this doesn't work because the forms API doesn't know about the extra fields.

I was very confused.....
I need a newsletter module for 4.6, that is able to sends email (html) with image attachment to registered and (above all) non-registered user.
Sendmail seems the right one, but doesn't support attachments.

Someone can suggest me a solution?

I've installed the Gallery module for 4.7.2 and everything works fine except when I try to view an image in an album, i get a "Page Not Found" error. Any help here?

how to give every one a space to only display all his products?

now we can add user's Favorite by the module of favorite_nodes,how can i add favorite to my one of OG?
thank!

Hello everyone, my brother and I would like to announce that, with a little bit of help from our friends, (you guys (not too much though)) we all may be able to rake in revenue from a new advertising method that we are designing. It is called "Simple Ads".

The basic idea is that advertisers can show up to your site and sign up through a very easy interface to display thier ads on your pages.

Heres how it works:
1 advertiser shows up at your site and wants to place an ad.
2 they click on the "advertise" button.
3 they are directed to a screen that gives them information on what kinds of ads are accepted (admin defined), and how the system works (and also dislays current statistics on viewership potentially).
4 they upload image or text ad.
5 they type in the url that thier ad will point to.
6 they pay

Its that simple. Only its not. The amount of exposure that an advertiser has on your site is based upon the amount that they paid in relation to the total amount that is currently in the total active ad revenue. The ads expire after a defined amount of time and as such the total active ad revenue will decrease if the old ads are not replaced by new ones.

if the total active ad revenue decreases then those advertisers who still have active ads will get more exposure since the ratio of the amount that the individual advertiser paid with respect to the amount in the total will be getting larger.