Well the item drop script should work with Mys v1.3.4, or at least shouldnt mess up the rest of your site. Anyway if the only issue was caused by itemdrop script, I will try fixing it for you. If you have modified other script files though, then it may be out of my responsibility of helping you.
I may be busy tomorrow and the day after tomorrow, but when I get a chance I will look at it, and investigate into your issue. Keep in mind that your problem may take longer to resolve than an average user's, since your server's configuration is strange.