The power point in my 2005 f 350 does not work. And i have no manual for the fuse panel. Could you help?

They are listed in the manual and here is the information, the fuses are under the hood in the power distribution box.
FUSE# 71 20A** Auxiliary power point/cigar lighter
FUSE #72 20A** Auxiliary power point (right rear quarter panel)
Attached is the pdf owners manual, in the document the fuses are listed on page 294.

http://www.fordservicecontent.com/Ford_Content/catalog/owner_guides/13exdom3e.pdf

This is the fuse panel under the right (passenger) side kick panel. You need to remove the kick panel in order to see the fuses. If they are marked by number, it will be the number 41 fuse. Hope this helps.....

The owners manual lists :

Cigar lighter / DTC plug :Cab fuse panel Fuse #3, 25 A
Aux Power Point : Engine compartment fuse # 10, 25 A

Check your owner's manual for the fuse diagram. Sometimes a fuse panel diagram can be found on the inside of the door/panel that you would open to access the fuses. Hopefully, this will help to FixYa problem!

THE FUSE YOU ARE LOOKING FOR IS #63 POWER POINT, INSTRUMENT PANEL, CIGAR LIGHTER FRONT AND IT IS A 20 AMP FUSE. #66 IS POWER POINT, C PILLER, REAR AND IS ALSO A 20 AMP FUSE BUT NOT FOR THE FRONT INSTRUMENT PANEL. #S 57 & 61 ARE LISTED AS NOT USED. THESE FUSES ARE LOCATED IN THE FUSE BOX IN THE ENGINE COMPARTMENT. THEY ARE ABOUT 3 ROWS OF FUSES FROM THE BACK OF THE COMPARTMENT COMING TOWARD THE FRONT. THEY WILL BE MINI FUSES IN THE MIDDLE OF THE FUSE BOX AFTER THE FIRST 3 ROWS OF FUSES FROM THE BACK OF THE FUSE BOX TO THE FRONT WHERE YOU WOULD BE STANDING. THEY WILL HAVE 4 MINI FUSES TO THE RIGHT OF THEM AND 4 TO THE LEFT. IF THEY ARE LABLED THEY WILL BE 66 AND 63. YOU WANT 63 WHICH WILL BE CLOSEST TO YOU.

Ford calls them power points, if you are not talking about the one just above the ash tray ( that is the cigar lighter ).

Instrument panel power point ( to the right of the radio / HVAC center panel ) : Fuse # 39
Cigar lighter : Fuse # 41

There is also a power point in the rear of the SuperCrew & SuperCab cab configurations, and if installed, there can also be a power point in the overhead console ( think that is the rail system )

The power point in the dash on the 2000 MY truck is engine compartment fuse panel, fuse #1, 20 A
You might be talking about the rear power point which is engine compartment fuse # 12, 20A
Passenger compartment fuse panel, fuse # 3 is for the cigar lighter & ODB-II port.
If you are talking about the power point, it is the engine compartment fuse panel ( could be both the power point and the cigar lighter were both out )

If you did not get an owners manual with your truck ( purchased used ), you can download one from Ford :
https://www.fleet.ford.com/maintenance/owners_manuals/default.asp

Also handy to have the PDF to search on keywords ( Ford calls the DC power ports, power points if you are searching ).

All 3 are on separate fuses.

Cab fuse panel ( passenger side kick panel, by the fuel inertia switch ) :

Instrument panel power point : Fuse # 39
Rear Power point : Fuse #37
Cigar lighter : Fuse # 41

If you did not get an owners manual with your truck ( purchased used ), you can download one from Ford :
https://www.fleet.ford.com/maintenance/owners_manuals/default.asp

All 3 are on separate fuses.

Cab fuse panel ( passenger side kick panel, by the fuel inertia switch ) :

Instrument panel power point : Fuse # 39
Rear Power point : Fuse #37
Cigar lighter : Fuse # 41

If you did not get an owners manual with your truck ( purchased used ), you can download one from Ford :
https://www.fleet.ford.com/maintenance/owners_manuals/default.asp

not sure if the fuseblock is numbered, but the ford schematic lists the cigar lighter as 57, instrument panel power point is 63, rear power point is 61 and C pillar power point is 66. all are 20 AMP fuses.