did i lose all of my threads when mrexcel switched to a new format?

[Joe4]

i lost much of my posts here. i did not saved, or made backup of any vba projects at all

They are not lost. You should be able to find them using the methodology described in post #5 above.
The only thing is, you will have to wade through a bunch of other posts too (anyone who posted "my problem").
But they should all be there.