Customize ideaPush

Hi,

First of all, thank you for your amazing job creating ideaPush. I am working on creating a community of the people who will share they dreams and support each other in order to reach them and I would like to use ideaPush for that. But I have few technical questions. 
Could you help me with this?

1. I want to change the title “Push your idea” to my own title, is it possible to do that?
2. Can the sentence under the title “get your idea 100 to be reviewed” be removed?
3. I would like the users to be able to choose filters “showing” and “tags” but remove the filter “ideas that are”
4. And the last, most important during login I would love that the users only have to write “first name” and “email” no need to write their last name.

I would really appreciate if you would be able to help me with that.
Greetings and once again thank you for this great tool!

Best,
Daniel

The page I need help with: [log in to see the link]