Copying all contacts from phone to SIM

[choi]

Hi, how would i go about doing this?
Can only find the option of import from SIM (of which i have no contacts on), Import from SD card and Export to SD card.

I'm going on holiday in a couple of weeks and i'm not taking my Desire in case i lose it, so need to transfer contacts to SIM.
TIA.

 

[Si Pie]

Could try an app called contact2sim