You are most welcome. The folks in here are who answered my questions about parts creation, so I'm paying forward on that debt 
. For me this was fairly easy as I'm now (after around 9 months of doing it) relatively familiar with the tools. To someone new to an svg editor it isn't anywhere near simple. I simply added .2 in to the x coordinate of the 15 pads on one side of the board (taking them from .9 in to 1.1 in) on both breadboard and pcb. Then I needed to scale up the background on breadboard (which is a little more complex in that I needed to ungroup everything first) to fit the new size then regroup it to add back in the breadboard group id. That will have moved the mounting holes in both position and size so they are likely no longer correct (assuming they were correct in the first place of course ). Last but not least when looking at the gerber drill file output I discovered the holes were set to .022 when for .1 pins they need to be .038. Normally that to is an easy change, but in this case there is a translate in effect (which changes the coordinate system in odd ways) so I ended up doing a copy and paste of a pad from another part that I knew was .038 and moved it in to the copper1 group (none of which is going to be easy for someone new to an svg editor!) and then copied the radius and stroke-width parameters after the translate took effect in to all the pads with a text editor and global replace. Then I needed to move the silkscreen outline in pcb to reflect the new size of the board and it was done. For a final check of all the placement you can export the gerber files (as if you were going to have a fab house make a pcb) and then use a gerber viewer (I use gerbv from the geda project) to look at the files and/or read the drill file with a text editor as it has drill sizes and x / y coordinates for all the holes.
Peter