Flash is not a TM, but Macromedia Flash is a TM.., but you are still infringing if you use as a macromedia products site, which is what flashtemplates.com is.
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MACROMEDIA FLASH
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Trademark: MACROMEDIA FLASH
Status: REGISTERED
Official PTO Status:
Registered
Register: Principal
Serial No: 75336240
Registration No: 2520435
042 - Scientific Computer & Legal (Miscellaneous)
1st Use: January 04, 1997
Filing Date: August 05, 1997
Filed I-T-U: Yes
Published Date: April 06, 1999
Registered Date: December 18, 2001