Thanks everybody, the MBR schema now is restored via TestDisk, and thanks to the author for this piece of software.
I wanted to format only my Data (NTFS) partition for a fresh start. But I ended up partitioning my whole disk from MBR to GUID structure and now all my partitions are gone.
I had a Ubuntu/Windows setup with MBR structure and lots of partitions and few of them where truecrypt partitions.
Please help, I am in huge trouble, lost all my wedding pictures, account logins. Can I get my data back?
Sorry if already answered, but I am kinda lost right now and I apologize.