Is it true that SQL Developer only supports the 32-bit version of jdk1.6.0
No. That is wrong, I have had successful installation with SQL developer with 64bit with the same.
And Oracle states you to install 64 bit JDK for 64 bit SQL developer, please refer link (Section - 64 Bit Windows Support):
For Step by step instruction, please refer:
Hope this answers!
Thanks so much! I'm set up and connecting
Great!!! thanks for the update...