Taking credit of tax paid

Hi All

Say i am selling goods (MANUFACTURER)and charging freight as well as service tax from debtor.

Now in my invoice i show  composite freight amount(including tax) as FREIGHT. and i am depositing tax with Govt. So indirectly its customer who is paying ser. tax but its me who is having challan for deposit of tax ((coz i am paying to GTA so liab is on me.))

Can customer  take credit  of tax paid        My answer is  DEFINITELY NO( in absence of cenvatable documEnt)

My queries are

1st  PLEASE TELL ME  can i show freight amount and service tax as separate item in my invoice?????   coz i am not a service provider.

2nd aND IF i can mention ser. tax as separate item then on basis of that invoice can cusomer take credit coz he is paying that to me????

3rd Further say i am mentioning tax as a separate item then AS PER me excise liability will be calculated including freight but excluding tax amount .Correct me if i am wrong here.

EAgerly waiting for your replies..

Thanks a ton...