Sorry for my late reply.
Most of my explaination fails to be clear...
-Not all dotlrn text form elements have trouble.
-With community Welcome message case, I'd like to emphasize on editing trouble on xinha for internationalization not only for Korean. Sorry I can't explain further detail about this you'd better neglect this.
By the way
Is it possible to install xowiki on oacs 5.2.4?
If so, let me know the detail procedure including related module which should be upgraded.
I posted it on separated thread but got no reply.