When i start at the Home page and click to open the Tutorials section, I can access threads all the way back to July 2007.
I think you will be able to do the same if you change one of your settings.
Click on Settings (top right)
Scroll down, and click on General Settings (left column)
Scroll down and select "Show All Threads" as your Default Thread Age Cutoff.
The search feature is still not working at 100%.
here are the steps to find the specific tutorial you want:
do an Advanced Search
select the option to search Posts
search keyword dresden or dresden plate
make sure to clear the check from the Exact Name option
this will result in a list several pages long
sift through until you find the one you are looking for
when you first click through to that tutorial, all the posts will appear to be empty.
(tech support has not yet figured out why that happens. it has been that way since the vBulletin sofware company issued the last update. so, if our techs can't find the cause and solution, they will have to depend upon vBulletin to issue a fix.)
hit the F5 key to refresh the page.
the posts will appear.
since i had to test anyway, i will share links i found that might be what you want:
Dresden Plate Tutorial
Dresden plate with no special rulers or templates
clear as mud?