Where in the WEB can I find Swathi ThirunaaL's compositions?
Was the song "PARAMA PURUSHA" - in Vasanthaa Ragam, composed by Him, IF not who composed that song?
Can I have meaning of the words of the song, PLEASE?

Hi,

Swati Tirunal's compositions can be found under the Composers link:
http://www.geocities.com/promiserani2/composers.html

Scroll down to ST and you'll find his biography and all the compositions on karnATik by him.

Parama purusha nirupamana is by Annamacharya, but parama purusha in vasanta is by Swati Tirunal (Lyrics from Lakshman Ragde):
parama puruSa jagadIshvara. rAgA: vasanta. Adi tALA.

P: parama puruSa jagadIshvara jaya jaya pankajanAbha murArE
A: sarasIruha bhava shankara vAsava sannuta carita shaurE
C1: kalitadara hasita kamra mukhAmbuja khagavara vAhana dEva
khaladanujAntaka nijapada sEvaka kaluSamaya vanadAva
2: bhujagAdhipashaya puraTamaya vimala bhUSaNa bhUSita dEha
bhuja yugaLOddhayata shankarada caraNa bOdhAkara dhutamOha
3: cAru vidhruta vanamAlA kaustubha sAtvata kamala dinEsha
sArangAdhipa tApa vimOcana syAnandUrapurEsha

meaning (from Meena):
Oh PARAMAPURUSHA! God of the universe! PADMANABHA! Enemy of demon MURA! Victory unto you.
Oh SAURE! Your glory is praised by BRAHMA, SANKARA and INDRA.
Your smiling beautiful face resembles the lotus; Oh Lord! You have GARDUA as your vehicle; You are the vanquisher of the demons and saviour of those who prostrate at your sacred feet. You are like wild fire to the malicious.
You recline on the serpent king; You adorn pure gold ornaments; You hold SANKHA and CAKRA in your two hands; You are the fountain of wisdom and free from desires-MOHA.
You adorn beautiful garlands of wild flowers and KAUSTUBHA; You are worshipped by sun; You wiped out the afflictions of INDRA and You are the Lord of SYANANDURAPURA.