Need Help designing a squeeze page

Hey there.

I'm a total newb here, first post.

I'm trying to set up a squeeze page for a PLR product I'm planning to promote. Here is what I want it to look like:

Header will just be one of the banners they are providing in their sales materials. I am struggling to figure out how to get Wordpress to upload the images, though. They're in PNG format, and every time I try to upload the banner image to WP, it tells me that it's not allowed due to security. Help.

Below the header, I want to have 3-4 bullet points for sales points, emphasizing a healthy discount.

Below these bullet points, centered, I want to have my aWeber optin form (already customized for the niche in question).

Here are my challenges right now:

I already mentioned the image format issue--UPDATE: I figured out how to change the image to a JPEG using my Paint. However, now when I upload the image, regardless of its size, WP only lets me display one half or the other. Both are important. Help.

I'm struggling to find a WP theme that will let me lay out something so simple. Again, this page will consist of a header, a few bullet points, and a name/email squeeze.

Also, once they optin, I want to redirect my new customers to an OTO page where I'll try to upsell them. I am also unclear on how to do this. Help.

Help!

Thanks!