Need help on handbrake...about anime ass e.t.c

Hi,
I have problems with handbrake..

I have anime mkv with softsubs and i have hard time..

I want to convert mkv which has dual audio and subtitles to mp4 but i can't..

I am not sure if you can understand me..

I will post photos here to make you understand a bit.

1.The original mkv with softsubs.
http://imageshack.us/photo/my-images/836/41178976.jpg
http://imageshack.us/photo/my-images/585/26315428.jpg

2.After converted from mkv to mp4 with dual audio and hardsubs it looks like...
http://imageshack.us/photo/my-images/444/3issue.jpg
http://imageshack.us/photo/my-images/211/4issue.jpg

The arrows show that the subtitles don't show like the original mkv..

Please i beg your help...how to make subtitles display right... and about mkv softsubs it has fansub ass.

Thank you... :(