Incursions are PVE content, but given the nature of EVE Online and its players, most content can turn into PVP rather quickly.
As long as you stick to Incursions in high security space you're rather safe though.
If you don't have any corp mates ingame to join fleets with, you can try using the ingame incursion channel (which appears when you enter incursion constallations) to hook up with fleets. Logistics ships are always in demand.
To avoid fleets with random people, I would recommend you start looking for a good player corp that specialize in running Incursions.
The evelopedia has a detailed guide on Incursions: Incursion & Sansha's Nation
There's also a 3rd party site which I find to be very useful, with plenty of more in-depth guides on fittings to use during the incursions: http://incursions.nexsoft.de/
If you're specifically looking for forum threads on the topic, you could try and check out the Missions and Complexes
category on the forum.