Small changes (SWSINFOTECH)

I have a website which sells used lorries(trucks) online in Malaysia. URL : [login to view URL] Description: this is a very simple website where customer register in our website and then he pay me the money to post the lorry he wants to sell on the website. Currently i do not open for public registration but i will do it in the next two months. So currently I as the admin will post the lorry for them. i have some problems to fix in this wordpress-based website. 1) Photo display. Example : If i try to search something on my website, then goes to the search result page. I press one of the lorry and goes to the listing. After viewing 3 photos, I have to click the browser\'s back button about 5 times to get back to the result page. Can i solve this issue by clicking only one \"back\" and it will go back to the search result page? 2) Photo size Whenever customer press to enlarge a photo, the photo is so small that it doesn\'t fit to the fullscreen on the device. Example if i enlarge the photo on my iphone/Samsung phone, the photo pops out but its so damn small. Please refer to the attachment. Can i change this to, photo fits fullscreen of any device used to see the photos? No matter its a portrait photo or landscape photo, it will enlarge and fit to the device screen.