if it's a very slow leak & u can wait; goto their website, & contact the manufacturers directly to see if they can just give u a replacement key... then compare the costs of getting a new key (if possible) to just starting over w/ new lugs/key set
here, i'll link it 4 ya to quicken the process...
http://www.adrwheels.com/
good luck n keep us updated
edit
http://www.pepboys.com
goto 'tires and wheels'
click on 'wheel & tire'
then 'ADR' link
finally 'caps and valve stems'
i dunno if this is what the tool looks like; u may haveta walk into the store & physically see the catalog that they have stored in the shelf; i remember from working there that they have more pics & the adr site doesn't deal directly w/ customers anyways <shrugs>