corrupted CS6 suite illustrator and photoshop not functioning properly

My iMac recently crashed and I had to buy a new iMac, files were migrated over from my old Mac to the new one, the photoshop application is missing and the illustrator program creates pdf files that are not displaying properly.  I am thinking that it would be best to uninstall the Creative Suite version 6 and reinstall it, all though I no longer have a DVD drive to use the installation disks, can this be downloaded from the Adobe sight or do I need to purchase a DVD drive? What is the best option at this point?

Thanks