Miquel, I've just added some more diagnostic output/logging for the svn client download. I could not reproduce the issue though, so I've closed it.
If you have any more issues (which I hope you won't have), please don't hesitate to post, along with the relevant console output and log output (note: on crashes, the log may refer to a detailed log somewhere in %temp%; please add that as well).
Please feel free to do that in a personal message if you'd rather do that.
Thanks a lot for your efforts in reporting the bugs in fpcup; hope it works for you now.
Cheers,
BigChimp