I can't get Upload To to work with imageshack (either with my account or with a non-account upload). I've been able to set up the plugin with my photobucket account, so I'm fairly sure I installed the dll's properly. (I have ImageShackUpload.dll and .pdb, SBCommon.dll and PhotobucketNet.dll all in my Effects folder. I've made sure they're all unblocked). I'm running PDN 3.5.5. and all the plugins come from your latest plugin pack (except the PhotobucketNet.dll, of course).
There haven't been any crashes, so there are no crash logs to share. However, when trying to upload to imagesh