You are mixing up 2 arches in the one question....and I might get easily confused by that.
1. Is there a TC iso specifically for 64bit with graphic interface (my preference is JWM)?
To the best of my knowledge there has never been a coreplus for 64 bit that offers both wireless support and multiple desktops including JWM
I would suggest you download TinyCorePure64....test it.....and then add TCEs including jwm.tcz or maybe the meta TCE Xorg-jwm-desktop.tcz
why is it reporting 1024x768?
on x86 or 32 bit you appear to be running vesa driver. Before you try out 64 bit, you may like to see if you can set up Xorg?
Note Juanito is being very polite....when the info reads
Note: the graphics-KERNEL extension may be required for intel hardware or the
modesetting driver included with xorg-server
I would suggest to you that just ensure graphics-KERNEL is named above Xorg* in your boot list
3) Have you considered loading firmware-i915? Firmware should IMHO be above graphics-KERNEL in your boot list
Are you seeing any hits in
dmesg | grep firmware
I can not help with 915* stuff as I am on AMD, also TC64 does not appear to have 915resolution.tcz