show post thumb for external images

I transfer my blogger blog to WP site, i install a theme “junkie channel” if you see my site – https://www.movieflake.com/ . home page show recent 10 posts , but they did not show post images.

i know all my post images is external, all images are saved in photobucket, tinypic, and most of picasa which is by dafault locatin of blogger. my theme did not support external images, please tell me step by step what should i do resolve this problem. im totaly new in php and wordpress

Thanks