Bonanza 36
Flight Crew Instrument; Flight Crew Private
Flight Crew Last 90 Days 60; Flight Crew Total 1100; Flight Crew Type 400
Confusion; Human-Machine Interface; Situational Awareness
Deviation - Track / Heading All Types; Deviation / Discrepancy - Procedural Clearance; Inflight Event / Encounter CFTT / CFIT
Air Traffic Control Issued Advisory / Alert; Air Traffic Control Issued New Clearance; Flight Crew Returned To Clearance
Aircraft; Human Factors
I filed a flight plan using fltplan.com. I received and correctly read back my clearance from delivery. However I input the clearance to my GPS navigator by referencing the forecast winds aloft section of fltplan.com; not the actual route.  This caused me to omit fixes POXKU and PDZ and I navigated towards terrain.  ATC called; and asked if I was given a vector to join V8 which I had not.  I was then given a vector which I dialed into my heading however I had disengaged my autopilot; and I did not notice I was not turning to the heading.  I was given a second vector when I noticed autopilot was not engaged. The Controller then asked how I was navigating to PDZ; which I did not respond to as I was not navigating towards PDZ. This problem was compounded by my recent installation of a 'Glass Panel' Aspen Navigation system.  I am not familiar with the system yet and did not confirm where my first vector was towards. Additionally; I should have requested vectors; or direct to a fix when I realized I did not know where I was going. I have been trying to fly in the IFR system in VMC as much as possible to gain experience with the new navigation systems.  I probably need to continue that with an instructor.
BE-36 pilot reports a track deviation due to errors entering his cleared route into his GPS and lack of familiarity with a new glass panel flight display.