I'll give this one a try:
#1) it was a low-cost carrier operating out of a primary hub at EWR
#2) don't know the exact number, but they had 737-100's, 737-200's, stretch 727's, and 747's
#3) see #2
#4) EWR to YUL, Portland ME, Burlington VT, ALB, BOS, PVD, BDL, SYR, ROC, BUF, SFO, LAX, CLE, DTW, PIT, CMH, DAY, CVG, STL, BNA, BHM, MSY. ATL, CLT, JAX, MCO, MLB, SRQ, FMY, PBI, FLL, MIA, and I'm sure I missed some.
BTW, there is a Peoples web-site, I'll dig it out and post it.
Tom in NO (at MSY)
"The criminal ineptitude makes you furious"-Bruce Springsteen, after seeing firsthand the damage from Hurricane Katrina