Tascam 008 recording

[Sunhouse]

Hi There & thank you for letting me join the group!! I recently got a Tascam 008 ex and am absolute and complete novice to any recording devices. Am trying to work out the basics and using user guide but am so ...nervous/lacking any knowledge etc, wanted to ask for some directions. For now just want to record guitar and vocals, Friend has recorded some vocals, next steps getting guitar recorded in synch! These questions may have been posted before & apologies for any repetition.... Is it possible to hear what is being recorded through any external amp/speaker... & if yes, whats the best/most reasonable speaker device for this? Can guitar, electric or acoustic, be recorded with effects pedals signal , like delay pedal or otherwise? I have Marshall MG30 dfx, 4 jack in puts, footswitch, CD in, emulated line out headphones and guitar jack. Ideally would like to record vocal and guitar at same time,

Apologies if these are, (most likely) very basic questions, but I really have no idea re these capabilities/how to set up..

Any directions very much appreciated

Thanks

Mick