After installing the quickstart, there were no errors during the installation I have some problems.
1) I cannot find the plugin used for the products zoom in category view, the images are distorted.
2) The sort by price function does not work properly. From what I understand it checks the first digit of the price, so 1000 is less than 200(I checked both with ascending and descending)
3)When a user tries to register or update the address(this is with the admin account) there are no fields visible.

Can you help fixing these?

PS. The website is translated in Greek, I am not done yet. If you like I'd be happy to contribute with the translation.