Retirement tax questions

Hi - It's a year later and I am back stuck on this same darn page. TT did not retain last year's entry... argh. And the worksheet was not retained in the return, so I don't see that either!  argh.  So I am trying to figure this out anew.  If I understand correctly, I have to

 

1) for "Other Contributions"  add up the Cost Basis of Every IRA, Roth account I have... but NOT 403b, and NOT SEP, correct?

 

2)for Total Distributions Received in Previous Years, I add up everything I've taken out from:  Trad IRA, Roth IRA, ... and SEP and 403b as well? or not those two.

 

This has to be the most vague, confusing page in all of Turbo Tax (and maybe the mass. Tax Code)

 

Thanks for any light you can shed!

Bill