Some pretty serious questions there marsboy!
Q1 Depending on what your are trying to do, probably functionally equal to or better.
Q1b St Kilda look pretty promising at the moment but I hope the Swans get up after all.
Q2 praps, wots INTEGRATE mean to you?
Q3 yes, in fact you can use it with any technology ... even coffee machines, as long as you understand what the word "model" means.
Q3b: Duno, AFAIK it doesn't go looking.
Q4: With a bit of effort on your part yes.
Q5: With a bit of RTFM on your part yes.
Q6a: Yes, as long as you can model.
Q6b: (sigh) If it, or any tool could do that I could get rid of 35 code cutters.
Q7:

(The operative word is the last one in the left hand box ... the repository is where you can store your model - other EA editions store the models in JET databases, aka MS Access .mdb's re-extensioned as .eap's. I emphasise JET as M$2007 seem to have buggered the JET engine beyond belief.)
If you are working independently there, what exactly is it that you want out of a UML modeling tool that can be provided to one who, on their own admission, does NOT know UML. Secondly, I presume that you have actually read most of the information provided by Sparx on the web site and do realise that this is actually a
user forum and may therefore understand that most contributors do not favorably comply to
demands for information.
Thirdly, I do hope that you do take the effort to
a) investigate thoroughly the advantages of design based systems
b) do take the time to find out what UML is all about, and
c) have an most exemplary and satifying career.
wtgpr
bruce