I need help merging global heads and stuff for my deadjournal layout. I'll get the codes with what I want, I just don't know how to merge them. Can anyone help? Please?

Are they CSS codes? If they are, then take two that look like this:
<style>
a bunch of stuff
</style>

<style>
more stuff
</style>

And they combine to look like this:
<style>
a bunch of stuff
more stuff
</style>

If you want it explained with the codes that you have, just post them here.

No, they aren't CSS. I'll post the codes I have. Note: The red lines are just showing a seperation in codes.

GLOBAL_HEAD<=
<STYLE TYPE="text/css">
<!--
body {
background-image:url(http://www.urlbackground.jpg);
}
-->
</STYLE>
<=GLOBAL_HEAD
================================================== ========
LASTN_TALK_READLINK<=
<a href="%%urlread%%"><b>%%messagecount%% thought%%mc-plural-s%%</b></a>|
<=LASTN_TALK_READLINK
LASTN_TALK_LINKS<=
<tr>
<td align="right" colspan="2" width="100%" bgcolor="%%color:weak_back%%" class="comments">
%%readlink%%<a href="%%urlpost%%">breathe in and take my life in you</a>
</td>
</tr>
<=LASTN_TALK_LINKS

FRIENDS_TALK_READLINK<=
<a href="%%urlread%%"><b>%%messagecount%% breathed in%%mc-plural-%%</b></a>|
<=FRIENDS_TALK_READLINK
FRIENDS_TALK_LINKS<=
<tr>
<td align="right" colspan="2" width="100%" bgcolor="%%color:weak_back%%" class="comments">
%%readlink%%<a href="%%urlpost%%">share your thoughts</a>
</td>
</tr>
<=FRIENDS_TALK_LINKS

DAY_TALK_READLINK<=
<a href="%%urlread%%"><b>%%messagecount%% breathed in%%mc-plural-%%</b></a>|
<=DAY_TALK_READLINK
DAY_TALK_LINKS<=
<tr>
<td align="right" colspan="2" width="100%" bgcolor="%%color:weak_back%%" class="comments">
%%readlink%%<a href="%%urlpost%%">breathe in and take my life in you</a>
</td>
</tr>
<=DAY_TALK_LINKS
================================================== ========
GLOBAL_HEAD<=
<style type="text/css">
body {
scrollbar-face-color: #color;
scrollbar-shadow-color: #color;
scrollbar-highlight-color: #color;
scrollbar-3dlight-color: #color;
scrollbar-darkshadow-color: #color;
scrollbar-track-color: #color;
scrollbar-arrow-color: #color;
}
</style>
<=GLOBAL_HEAD
================================================== ========
</STYLE>
<style TYPE="text/css">
<!--
body, div, font, p, a {
font-family: 'Verdana'
font-size: 12pt;
}
-->
</style>
<style type="text/css">
table {
font-family: 'Verdana'
font-size: 12pt;
border: 8px dotted #FFFFFF;
width: 50%;
margin-left: 15%;
margin-right: 0%;
}
table table {
width: 0%;
margin:0;
}
table table table {
width: auto;
}

Your GLOBAL_HEAD codes are CSS. Combined, they should look like this:

GLOBAL_HEAD<=
<style type="text/css">
body {
scrollbar-face-color: #color;
scrollbar-shadow-color: #color;
scrollbar-highlight-color: #color;
scrollbar-3dlight-color: #color;
scrollbar-darkshadow-color: #color;
scrollbar-track-color: #color;
scrollbar-arrow-color: #color;
}


body, div, font, p, a {
font-family: 'Verdana'
font-size: 12pt;
}

table {
font-family: 'Verdana'
font-size: 12pt;
border: 8px dotted #FFFFFF;
width: 50%;
margin-left: 15%;
margin-right: 0%;
}
table table {
width: 0%;
margin:0;
}
table table table {
width: auto;
}
</style>
<=GLOBAL_HEAD

Delete all other times you have the global_head in there and just use this one.

Thank you:)