Yes. Contact me telling what you need.
Yes. Most of them.
Credit card (via Paypal - you don't need to have an account) or Paypal balance.
Definitely not, since it's not a vector software. Designers and graphic bureaus will need a vector file to work properly with your design.
It is a file format used to generate all images you will need for digital and print media. Common types of vector files are .eps and .ai. Raster images (like .jpg, .gif, and .png) can be accurately extracted from them.
Before the purchase, all the rights belong to the designer. After the purchase, they belong to the buyer/owner. To protect the logo design commercially, it must be registered as mark.