OK, got it. The myfiles.asp changed from the original one you uploaded. The link sections on this latest one is causing you problems. It looks like you changed it a bit when doing the translation and lost a few important bits like the location querystring variable.
Lines 228 to 234 where you have:
Change it to:
On lines 259 to 267 where you have:
Change it to:
I hope I copied your translations correctly. You will need to check these as I unfortunately do not understand them.
This fixed a number of issues I noticed with your version including the popup on delete. Let me know how this works for you.<