I ran into a false positive with Norton AV Online while working with another mod. I was removing Chloe (to clean up some dialog.tlk issues) and Norton flagged both TotDG and Yvette's setup files as ws.reputation.1. That struck me as weird, so I checked into it and it's Norton's way of saying "a friend of a friend of a friend told me this was horrible."
To be safe, I executed individual and full system scans with both Norton AV, Power Eraser, and Microsoft Security Essentials. Everything, including these mods, is clean.
I'd suggest turning off your security software's Auto-Protect features while installing these (and other) mods to prevent the rather annoying pop-ups.
To be clear, these files ARE safe, but your anti-virus software might flag them incorrectly.