leeeeper

Hi Guys. Ive just come home from 2 weeks away to find the kids have killed the PC. Got a new hard drive and installed windows7 and java . Installed minecraft and that seems fine . But my son plays tekkit and that wont run . it looks weird.You cannot see any mods on the left of the screen.You just get empty boxes with "loading" or "Add new Pack". Also i get this message when it tries to connect. (failed to downlaod http://assets.minecraft.net/1_4_7/minecraft.jar) So i tried to pull the folder from the old hard drive . The tekkit load page then looks ok and i can see the different mods on the left but when i try to log in it just says... Update failed in a box . Please people . my boy is crushed and i hate to see that . Any help would be greatly appreciated . I took a screen shot but cant seem to upload it here?