Riki, sorry to hear you are having problems. The 2 that are not working must have something different in your component wiring, compared to the others that are working.
For the 2 that are working, are you getting the desired output voltages? What are your R1 and R2 values?
Most modern 1/8-1/4 watt resistors have small leads and will fit those R1 hole sizes. Older 1/4 watt and larger 1/2 watt resistors use slightly heavier leads and might be tight. My good friend rtr12 reported those holes being a bit tight on a board he built, but said he eventually got them through OK. I personally have not had this problem.
One idea might be to cut the resistor leads short and bend them so that you can surface solder them on the top of the board. Or cut one short and one slightly longer and mount the resistor vertically as you had on one board. Tin the pads and leads first. No risk to the board doing it this way. 
Rod
