looking for help with Delicious problems

[ratcreature]

I'm using the Firefox add-on (version 2.1.106) to bookmark things, but for some reason I can't make my latest bookmarks actually show when I go to my delicious account. When I press the tag button on a page that I bookmarked yesterday, the add-on shows me my tags and note (I assume from some locally stored version), and that I'm logged in, but the delicious site itself doesn't, neither in the recent view, nor when I search for one of the tags. I just bookmarked another page to see whether maybe Delicous might deign to sync with me during a new bookmark action, but now my two most recent bookmarks don't show, rather than just one. The ones before that show okay, but I have no idea what I could have done to make it stop working. I looked in the add-on menu and can see any option causing this.

I did try clicking the "Sync Now" button, but that doesn't do anything, and the "Full Sync" fails. I tried logging out and in again, and after looking at the delicious support forums I tried deleting the ybookmarks.sqlite file in the profile folder, but even with that deleted it doesn't sync.

Is there anything else I could try? Because the on site interface delicous provides seriously sucks, after their latest update more than ever, so I can't really use that.

ETA: I can add bookmarks when I switch to "classic mode" but the bookmarking pop-up in that is horrible, and as soon as I go back to normal mode the syncing continues to fail. :(