Need Help Deleting Data

I am trying to learn the basics i went through the tutorial on building aguest book here on this site.Everything worked great but when i tried to write a basic simple script to delete data from a very basic Table in my access database it contains two fields item and id# to be exact CrystalId and Crystal the CrystalId Field is autonumbered everytime a crystal is entered. Now the problem       

ADODB.Recordset error '800a0cc1'Item cannot be found in the collection corresponding to the requested name or ordinal. /delete_select.asp, line 34

Line 34 looks like this : 

I have tried everything if i comment that one line out it displays the data just fine But doesnt delete anything  i am just learning and this one has got me stumped any help would be most appreciated

Well I am stuck then as i was basically taking the Guestbook tutorial and attempting to modify it to work with a diffrent database i followed it step by step and everything up to deleting worked out fine i am able to add to the generic database just fine and as for the "ID_no" i am still trying to figure out how or why this is being used in the iding part of the code string....

Sorry if i dont have a blasted clue  lol

 Awsome Thank you that was it i just had no clue what the veriable was so wasnt sure what it needed to change or if it needed to change i was able to rewrite everything and got it to work great! Learning as i go ...I really appreciate the help!

Thanks