4gb sdhc has reduced to only hold 2 pics

i purchased a 4 gb card in sweden im now in norway, someone help me to transfer my photo’s to a memory stick an then they deleted the card for me but now the card is mashed an will only hold two pics i belive they have deleted what ever was on ther to make it work please help…is there a way to reinstall what ever or copy from one card to another…

A memory card is simply a blank space in which to hold data. There is nothing to re-install. You might try re-formatting the card.