Is there any way to see those in Olly???

I don't see the point ?

They can be used in a program... To encrypt something...

For example, if you use them while generating a serial for a name, then
the serial would be different if the code is debugged then if its not...

Well, yes, but under Olly, the debug registers are going to contain pretty much known values - so I don't see the point of displaying them. Now showing code that references the debug registers I can understand would be useful, but only for things that should not be discussed on this forum.