Hey Chilli there is no problems with using this style with 3.5.4 as there have been no template changes from version 3.5.3 to 3.5.4.
But i am planning on releasing a new version by the end of the month that will be XHTML compliant and using $stylevars, and will work with 3.5.4 without having to ignore style versions.
If you would like your homepage coded for vBulletin that will be no problem at all i love challenges

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sales@bluepearl-design.com or this form:
http://www.bluepearl-design.com/template-quotes.php