Hmm somehow, the programme stopped working properly at some point, most likely due to some change in Imgur's stuff. I can connect to Imgur with their API key and post a screenshot, but a little while later (an hour?), the programme gives an error when I try to upload a screenshot, and I have to connect to Imgur again for it to work. Etc. I have temporarily switched to Myimgur, which is not 100% reliable, but it usually works.

Cool idea. I'm afraid it doesn't work for me, though. I have downloaded the latest version from your site, shut down the old version, replaced the .exe file on my computer, specified the album in the .ini file according to the instructions on your page, saved the file, and restarted the program. But, when I capture an image, it is uploaded to the default location on Imgur, not to the album I specified. I have no idea why (and to be honest this function wouldn't be a priority for me hehe—I just thought it would be fun to test). This is my .ini file (I have censored the tokens for this quotation):

[Settings]
Skip=T
hotkey=INS
Ctrl=1
Alt=
FileName=Auto-Save_$MM$DD$YY-$HH$NN$SS
Token=[censored]
Refresh_Token=[censored]
Time=41719.6333562847
LastImageURL=http://i.imgur.com/LAJDNc7.png
[Support]
Album_id=mpiZ9

Sounds OK. We can make a shortcut in Programs>Startup ourselves. You could use one of those programs that automatically create an installer, though, and store everything in %PROGRAMFILES%\ICUP . It's awfully convenient for new users to have everything set up automatically. But it doesn't really matter that much either way, I'd say.
I have used Inno in the past and it worked great: http://www.jrsoftware.org/isinfo.php