my vid from iphone to Imovie is upside down can rotate using imovie HD6?

In iMovie, go to timeline view. Select the up-side-down video clip. Click on Editing/Video fx/Mirror effect. In mirror effect, set Effect In and Effect Out to 0. Move the slider bar to Bottom. That should flip the clip right side up.

You can do this using Quicktime Pro 7:

Open MOV file in QT Pro (QT 7.6.6)
Window -> Show Movie Properties
select "Video Track"
select "Visual Settings" from lower window
check "Preserve Aspect Ratio"
Click on appropriate rotation icon (MOV rotates!)
Click back on the open MOV in Player Window
FILE -> Save

You can also do this using TransformMovie, available here:

http://www.macupdate.com/info.php/id/21859

Also, MPEG Streamclip can rotate video while maintaining the aspect ratio as well as the interlacing when converting to DV, which is what iMovie prefers as an input:

http://www.apple.com/downloads/macosx/video/mpegstreamclip.html

There is also a plug-in for iMovie from GeeThree called rotate/scale that might do the job:

http://geethree.com/slick/index.html

Further useful information here:

http://www.sjoki.uta.fi/~shmhav/SVCDon_a_Macintosh.html#vert-horizrotate

http://www.sjoki.uta.fi/~shmhav/SVCDon_aMacintosh.html#43-169

Yes you can, but why not try mpegStreamclip first - it's free.