ArduinoBT upload problems

following problem:
when trying to upload the code to the board we get the following message:

avrdude: ser_open(): can't open device "\.\COM7": the device is not conected

we tried everything with holding the resetbutton longer etc.

We already fixed the problem with the com ports with help of this link http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1237179908/15

but now we suffer from the next problem...

please help