Solaris 5? Why so old? Solaris 10 was out many years ago. Check
http://www.sun.com/software/solaris/specs.jsp to see if your machine will run it. Somewhere on that page there should be a link to an x86 HCL that might have more info.
You might also be interested in OpenSolaris. If Solaris 10 won't install on your machine, you might want to check OpenSolaris.
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Has it been a few days since I replied to your thread?
Don't panic! I'm a busy college student and may forget a post if I'm extra busy (or it might just take me a while to be able to do a decent reply). If you still need help and are awaiting
my reply after a few days, PM me about it.
When posting what errors you get, please give the full message. It makes helping you much easier.