Windows 7: hard drive partitions.

Hello, i need help with hard drive partitions. So now i want make them both same. I mean now i got in one partition 320GB in other 50GB, but now i want that they both be same, 370GB. But i cant to do this, i cant delete other partition. Some screen shots http://img21.imageshack.us/img21/9470/42974220.png, and i cant delete my first hard drive http://img34.imageshack.us/img34/8654/50316221.png. And look i have 50GB hard drive partition but they dont show them in computer http://img163.imageshack.us/img163/6524/84679007.png, only local disk



Omg my english is very bad, sorry, i think you guys understand what problem i have/

If you want to make them both into one, you would delete the 50GB one (make sure you have any data backed up)
Partition or Volume - Delete

Then extend the first one (to the left) into the free space. (to the right)

Partition or Volume - Extend

The reason "my computer" shows only the 320GB is the other has no letter assigned.

I hope this helps.