Making Progress - Course Update

Last night I finished summarizing module 2 in the course and now the Practice Assignment needs to be done.  I'm quite excited that I finally made progress as with us moving house, etc. etc. etc. it really took very long to finish this module.  Of course after the Practice Assignment is the lovely little test I need to complete in order to go the next module.  That is the part I always worry about most every time.  I'm already getting nervous just thinking about it.

The Full-Frame Sensor vs APS-C Sensors and their advantages and disadvantages can be quite confusing, or to me anyway.  I decided to see what information on the subject I could find online and found this post by Darren Rowse that clarified it and made it seem less complicated.  Here is the link:  http://digital-photography-school.com/full-frame-sensor-vs-crop-sensor-which-is-right-for-you

One thing I'm still not 100 % sure about and this probably might be a silly question, but what I want to know is if you use an old film camera lens on your DSLR, will the image you see on the view finder be the same as what is actually printed at the end of the day, considering the crop factor?  Or must you in your minds-eye see where the boarders will actually be if you take the picture?  In other words will the actual picture be smaller than what you can see on the viewfinder?

Hopefully someone can shed some light on this for me.