I think I have read somewhere that this should not cause problems.
I am not familiar with what Safe mode is, exactly, so cannot say for sure.
<link>".XOOPS_URL."/modules/mydownloads/index.php?lid=".$myts->makeTboxData4Show($myrow['did'])."</link>\n";
<link>".XOOPS_URL."/modules/mydownloads/index.php?lid=".$myts->makeTboxData4Show($myrow['lid'])."</link>\n";
<link>".XOOPS_URL."/modules/mydownloads/index.php?lid=".$myts->makeTboxData4Show($myrow['did'])."</link>\n";
<link>".XOOPS_URL."/modules/mydownloads/index.php?lid=".$myts->makeTboxData4Show($myrow['lid'])."</link>\n";