We've created this Forum Thread with some workarounds and advice to assist you in publishing you ebook.
Plagiarism: a warning for authors, check your books
Just a warning to authors: search for books with similar titles to yours, and you may find someone trying to sell your book as theirs.
I posted about this here: https://support.lulu.com/Discussion.jsp?id=ae55e26a92e0cd69a1d85e8c875c01a3
but little has changed since. I've just found another clear copy of my work, the author of which has several other titles.
I've seen little evidence so far that lulu is proactively monitoring spammers, so I'd suggest you monitor this yourself, and report any books that look suspicious.
PS. the author is question "Hugo Dorman" (http://stores.lulu.com/federico23) appears to have used that name in several other publications, some of which have already been remove. To whomever is removing the fake titles when they are reported, have some sense and investigate ALL the titles with those names!