I upgraded from 3.6.8 to 3.8.6 to 4.0.5 and it stopped working and so I did a fresh install of Thread Thumbnails 3.1.0 and that worked on 4.0.5. I upgraded 4.0.5 to 4.0.6 and it still works fine. I'm not sure what else to tell you. I don't think I did anything special.
Just in case it matters:
Web Server: Apache v2.2.15 (cgi-fcgi)
PHP: 5.3.2
MySQL: 5.1.48

I tried that too but no luck for me. I did notice that if I set the options to use the "first attachment" for the thumbnail and make it "before the threadicon", then the thumbnails will show when I make a new thread, but only if I select those options. If I make it "after the threadicon", or use the "first [img] tag" it will not work.

My users are not using attachments though, it would take up too much server space.

I did a clean new install on 4.0.6, I didn't upgrade.

I know your not the developer, just leaving this here for the developer to look at, or anyone that thinks they can help. Thank you!

Plz some one solve this problem for ous, and make it work for 4.0.6.

I agree, it's not an ideal solution, but for someone who had it working before an upgrade tp 4.0.6, this should at least get the thumbnails showing again.

Strange thing is, that if I set the thumbnail for after the post icon, it shows two thumbnail, so the other code which is embedded obviously works to a degree.

Ok i managed to make it work lol tho, it does not come up automatically when making a new thread!?!? Only when editing the post :(
https://vborg.vbsupport.ru/external/2010/08/24.jpg

Now, from the instructions, i didn't added the "{vb:raw thread.thumbnail}" in the threadbit as it was posting 2 thumbnails. Even with all the required info and mods in the templates, the darned thumbnail doesn't show like it is suppose to.

As for the options, everything is set to "YES" and we can only use the "User Entered URL" since the other options don't work :(

This one is turning out to be a major challenge in V4 lolll
Ain't there a brain that could resolve this puzzle???

I'll keep posting if i find other info......unless Null Parameter come up with a new update????

it would be work is is there any new update... a few weeks ago i tried the old version and it worked perfectly but i dint have the old version :(

There is a script in the first post to add thumbnails from existing posts, although I didn't need that, as I've had previous versions running.:) To prevent the two thumbnails showing, I selected thumbnail before threadicon.
http://www.thamesvalleybirds.co.uk/bird-photos-general/ Shows a page with it working.

Tks rolfw1 for the input my friend but even tho, the only way it can show...from my site... it when i edit the post! As for the script, i'm in total darkness as to how i have to run it and from where! Some advise could help here ;)

Tks

See this thread for getting the thumbnails to show https://vborg.vbsupport.ru/showpost....&postcount=154 , not sure about running the script, as I didn't need to do it, but replying in that thread may get you the answer.

Lollllll are you kidding me! hihihi 2 thumbs up bro!!! That made it work A1!!

So, looks like our old 3.8 is still alive in the 4.0.6 after all ;)

Thanks 1st image in post work all by it self now, just have to figure out how to have that script to work now :)

Cheers