jQuery not Defined (Interfers with Prototype.js)

Guys i’m desperately need a LOT of help right now.

I’ve tried every single combination for my jQuery to interact with my website, but prototype is already interacting, so its already used the $ variable.

I’ve already did

<?php wp_enqueue_script('jquery'); ?>
<script type="text/javascript">
jQuery(document).ready(function() {
jQuery('#tabslide > ul').tabs({ fx: { height: 'toggle', opacity: 'toggle' } });
});
</script>

but I get this error:
jQuery(“#tabslide > ul”).tabs is not a function

I’ve also tried this:

<script type="text/javascript">
jQuery(function($) {
$(document).ready(function() {
$('#tabslide > ul').tabs({ fx: { height: 'toggle', opacity: 'toggle' } });
});
});

</script>

but I get this error:

Firebug's log limit has been reached. %S entries not shown.		Preferences
[Exception... "Component returned failure code: 0x80004005 (NS_ERROR_FAILURE) [nsIDOMViewCSS.getComputedStyle]" nsresult: "0x80004005 (NS_ERROR_FAILURE)" location: "JS frame :: http://websitename.com/wp-includes/js/jquery/jquery.js :: anonymous :: line 11" data: no]

I’ve also tried this:

<?php wp_enqueue_script('jquery'); ?>
<script type="text/javascript">
            jQuery.noConflict();
            jQuery(document).ready(function() {
            jQuery('#tabslide > ul').tabs({ fx: { height: 'toggle', opacity: 'toggle' } });
            });
</script>

but it still spat back out at me and did this:

jQuery("#tabslide > ul").tabs is not a function
and another error message

$ is not a function
<em>[Break on this error]  var query = document.evaluate(expression, $(parentElement) || document,</em>

which was located at prototype.js on line 1263.

I need all the help I can get! Please help me.

I’ve tried using this code as well
jQuery(function($) { /* insert jQuery code here */ });

but it just outputs a more error messages. help!